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Patek Philippe 3406J Vintage Square Watch with Hermes Style Dial, circa 1964
By Patek Philippe
Located in Santa Monica, CA
This 3406J Patek Philippe Art Deco watch features a 27 x 27 mm square case, with a white Hermes
Category

Mid-20th Century Swiss Modern Wrist Watches

Materials

18k Gold

Patek Philippe 1567J Vintage Square Watch with Large Fluted Lugs, circa 1946
By Patek Philippe
Located in Santa Monica, CA
Patek Philippe Vintage 1567J, square watch with fluted lugs. made in 18 karat yellow gold, the
Category

Vintage 1940s Swiss Wrist Watches

Materials

18k Gold

Patek Philippe Early Yellow Gold Art Deco Square Tank Watch, circa 1923
By Patek Philippe
Located in Santa Monica, CA
Introduction: Early 1923 Square Face Tank Tortoise case, made in 18 Karat yellow gold, with silver
Category

Early 20th Century Swiss Wrist Watches

Materials

18k Gold

Chopard Happy Sport 7-Floating Diamonds 18 Karat Gold Square Watch 27/6679-23
By Chopard
Located in Miami, FL
27 mm Case Shape: Square Case Material: 18k Yellow Gold Bracelet: Red Alligator/Crocodile Leather
Category

21st Century and Contemporary Wrist Watches

Materials

Diamond, 18k Gold, Yellow Gold

Chopard Ladies Yellow Gold Diamond Square Wristwatch
By Chopard
Located in Agoura Hills, CA
Classic Chopard 18K yellow gold lady's watch with square shape gold bezel set with three rows of
Category

Late 20th Century Swiss Wrist Watches

Materials

Diamond, 18k Gold

Rolex Yellow Gold Square Wristwatch circa 1960s
By Rolex
Located in Los Angeles, CA
Rolex 18k yellow gold square wristwatch with a screw-back case, original champagne dial, sapphire
Category

Vintage 1960s Swiss Wrist Watches

Materials

18k Gold, Yellow Gold

Rolex Rose Gold Square Dress Wristwatch Ref 4470
By Rolex
Located in Los Angeles, CA
Rolex square dress watch in 18 karat pink gold, reference 4470. This beautiful rare Rolex watch
Category

Vintage 1940s Swiss Wrist Watches

Materials

18k Gold

Audemars Piguet Yellow Gold Quantieme Perpetual Calendar Square Wristwatch
By Audemars Piguet
Located in Miami, FL
Mens (27mm) Audemars Piguet Quantieme Perpetual Calendar Square Watch in 18k Yellow Gold. The Watch
Category

Vintage 1980s Wrist Watches

Materials

18k Gold

Vacheron Constantine Yellow Gold Square Wristwatch circa 1940s
Located in New York, NY
Vacheron Constantine 18k yellow gold square wristwatch, circa 1940s, with fancy lugs, manual-wind
Category

Vintage 1940s Swiss Wrist Watches

Materials

18k Gold, Yellow Gold

Omega Rose Gold Square Automatic Wristwatch circa 1950s
By Omega
Located in West Hollywood, CA
Omega 18k rose gold automatic wristwatch, circa 1950's. Large square 31 x 40mm, case with wide
Category

Vintage 1950s Swiss Wrist Watches

Materials

18k Gold, Rose Gold

Rolex Lady s Yellow Gold Square Wristwatch circa 1950s
By Rolex
Located in West Hollywood, CA
Rolex Lady's 18k yellow gold square wristwatch, Ref. 4663, circa 1950s, with glossy black dial
Category

Vintage 1950s Swiss Wrist Watches

Materials

Yellow Gold, 18k Gold

Piaget Yellow Gold Mini Square Dancer Quartz Bracelet Wristwatch
By Piaget
Located in Chicago, IL
Piaget 18K yellow gold mini square Dancer bracelet watch, gold dial, quartz movement. New in box
Category

Vintage 1980s Swiss Wrist Watches

Materials

18k Gold, Yellow Gold

Piaget Lady s White Gold Diamond Square Dancer Quartz Bracelet Wristwatch
By Piaget
Located in Chicago, IL
New Piaget 18K white gold lady's diamond Square Dancer bracelet watch, quartz movement, two row
Category

1990s Swiss Wrist Watches

Materials

Diamond, 18k Gold, White Gold

Patek Philippe 2436R Extra Large Vintage Square with Large Fancy Lugs circa 1946
By Patek Philippe
Located in Santa Monica, CA
Patek Philippe 2436R, 18 Karat rose gold large square 40 x 30 mm wristwatch, with Step Bezel and
Category

Vintage 1940s Swiss Retro Wrist Watches

Materials

18k Gold

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Square 18k Watch For Sale on 1stDibs

You are likely to find exactly the square 18k watch you’re looking for on 1stDibs, as there is a broad range for sale. Each design created in this style — which was crafted with great care and often made from Gold, 18k Gold and Yellow Gold — can elevate any look. You can easily find a 96 antique edition and 25 modern creations to choose from as well. If you’re looking for a square 18k watch from a specific time period, our collection is diverse and broad-ranging, and you’ll find at least one that dates back to the 20th Century while another version may have been produced as recently as the 21st Century. A square 18k watch from Patek Philippe, Piaget and Chopard — each of whom created a beautiful version of this treasured accessory — is worth considering. A square 18k watch can make for a versatile accessory, but a selection from our variety of 20 Diamond versions can add an especially stylish touch. Today, if you’re looking for a square cut version of this piece and are unable to find the perfect match, our selection also includes round cut and rose cut alternatives. When shopping for a square 18k watch, you’ll find that there are less available pieces for unisex or men today than there are for women.

How Much is a Square 18k Watch?

Prices for a square 18k watch can differ depending upon size, time period and other attributes — at 1stDibs, these accessories begin at $453 and can go as high as $39,000, while this accessory, on average, fetches $9,000.

Why Gold Shines in Jewelry Craftsmanship

Gold is the feel-good metal, the serotonin of jewelry. Wear vintage and antique gold necklaces, watches, gold bracelets or gold rings and you feel happy, you feel dressed, you feel, well, yourself. 

Gold, especially yellow gold, with its rich patina and ancient pedigree going back thousands of years, is the steady standby, the well-mannered metal of choice. Any discussion of this lustrous metal comes down to a basic truth: Gold is elementary, my dear. Gold jewelry that couples the mystique of the metal with superb design and craftsmanship achieves the status of an enduring classic. Many luxury houses have given us some of our most treasured and lasting examples of gold jewelry over the years.

Since its founding, in 1837, Tiffany Co. has built its reputation on its company jewelry as well as its coterie of boutique designers, which has included Jean Schlumberger, Donald Claflin, Angela Cummings and Elsa Peretti. There are numerous gold Tiffany classics worth citing. Some are accented with gemstones, but all stand out for their design and the workmanship displayed.

For the woman who prefers a minimalist look, the Tiffany Co. twist bangle (thin, slightly ovoid) is stylishly simple. For Cummings devotees, signature pieces feature hard stone inlay, such as her pairs of gold ear clips inlaid with black jade (a play on the classic Chanel black and tan), or bangles whose design recalls ocean waves, with undulating lines of lapis lazuli and mother-of-pearl. And just about any design by the great Jean Schlumberger is by definition a classic.

Even had he eschewed stones and diamonds, Southern-born David Webb would be hailed for the vast arsenal of heavy gold jewelry he designed. Gold, usually hammered or textured in some manner, defines great David Webb jewelry. The self-taught jeweler made very au courant pieces while drawing inspiration from ancient and out-of-the-way sources — East meets West in the commanding gold necklaces made by Webb in the early 1970s. The same could be said for his endlessly varied gold cuffs.

In Europe, many houses have given us gold jewelry that sets the highest standard for excellence, pieces that were highly sought after when they were made and continue to be so. 

Numerous designs from Cartier are homages to gold. There are the classic Trinity rings, necklaces and bracelets — trifectas of yellow, white and rose gold. As a testament to the power of love, consider the endurance of the Cartier Love bracelet.

Aldo Cipullo, Cartier’s top in-house designer from the late 1960s into the early ’70s, made history in 1969 with the Love bracelet. Cipullo frequently said that the Love bracelet was born of a sleepless night contemplating a love affair gone wrong and his realization that “the only remnants he possessed of the romance were memories.” He distilled the urge to keep a loved one close into a slim 18-karat gold bangle. 

BVLGARI and its coin jewelry, gemme nummarie, hit the jackpot when the line launched in the 1960s. The line has been perennially popular. BVLGARI coin jewelry features ancient Greek and Roman coins embedded in striking gold mounts, usually hung on thick link necklaces of varying lengths. In the 1970s, BVLGARI introduced the Tubogas line, most often made in yellow gold. The Tubogas watches are classics, and then there is the Serpenti, the house's outstanding snake-themed watches and bracelets.

A collection called Monete that incorporated the gold coins is one of several iconic BVLGARI lines that debuted in the 1970s and ’80s, catering to a new generation of empowered women. Just as designers like Halston and Yves Saint Laurent were popularizing fuss-free ready-to-wear fashion for women on the go, BVLGARI offered jewels to be lived in

Since Van Cleef Arpels opened its Place Vendôme doors in 1906, collection after collection of jewelry classics have enchanted the public. As predominantly expressed in a honeycomb of gold, there is the Ludo watch and accessories, circa the 1920s, and the golden Zip necklace, 1951, whose ingenious transformation of the traditional zipper was originally proposed by the Duchess of Windsor. Van Cleef's Alhambra, with its Moroccan motif, was introduced in 1968 and from the start its popularity pivoted on royalty and celebrity status. It remains one of VCA’s most popular and collected styles.

Mention must be made of Buccellati, whose name is synonymous with gold so finely spun that it suggests tapestry. The house’s many gold bracelets, typically embellished with a few or many diamonds, signified taste and distinction and are always in favor on the secondary market. Other important mid-20th-century houses known for their gold-themed jewelry include Hermès and Ilias Lalaounis.

Find a stunning collection of vintage and antique gold jewelry on 1stDibs.

Finding the Right Wrist-watches for You

Antique, vintage and luxury wristwatches have captured the hearts and minds of all manner of watch collectors as well as the watchmakers themselves — it's time you found your own.

Certain vintage watches for men and iconic watch designs for women are sought after not only because of their graceful proportions or innovative materials but also because of the illustrious histories of the houses that created them, histories that they stylishly embody.

Bulgari’s legendary Serpenti watch was on everyone’s list after the collection’s bold bracelet, which technically debuted after the timepiece, graced the wrist of actress Elizabeth Taylor. If anything, elaborately crafted timepieces — the unmistakably boxy silhouette of Cartier Tank watches, the elegant and minimal Calatrava designed by legendary Swiss house Patek Philippe — are even more effective than the shape we associate with traditional wristwatches.

Form watches — the all-encompassing moniker bestowed upon non-round watches — are making headlines and completing contemporary fashionable ensembles the world over. At the same time, both casual fans and careful collectors are drawn to the unbeatable charm of vintage styles, such as the icons designed by Omega that even James Bond can’t resist.

In the early days of watchmaking, watches were fragile enough that they necessitated protection from the elements. Now, wristwatches made of gold and steel can withstand the harshest climates — even 100 meters underwater, in the case of Rolex’s Submariner. Designer Gérald Genta, whose range of clients included Rolex, created for Audemars Piguet the first luxury sports timepiece to be made from stainless steel. First introduced in 1972, the Royal Oak was a perfect choice for blending the form and function that are now synonymous with sports watches.

Are you shopping for a wristwatch? It’s good to keep your needs as well as your specific personal style in mind: A smaller, subtle timepiece is a good fit for small wrists. When will you be wearing your new accessory? There’s a versatile model out there for everyday wear, while a rugged, feature-heavy watch is a safe bet if you’re prone to embarking on all-weather activities in the great outdoors.

Find antique, vintage and luxury wristwatches for sale on 1stDibs.

Questions About Square 18k Watch
  • 1stDibs ExpertApril 5, 2022
    An 18K gold watch is a timepiece made from gold precious metal of a specific purity. The term 18K means 18-karat, a precious metal that is 75 percent pure gold and 25 percent alloy. Shop a large collection of gold watches on 1stDibs.
  • 1stDibs ExpertNovember 26, 2024
    On a watch, 18K gold means that the watch features genuine gold. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The high gold content gives the metal an attractive color, while the alloy metals add strength to increase its durability. An 18-karat gold watch may be solid gold or gold-filled, which means it is primarily another metal that the watchmaker finished with a thin layer of 18-karat gold. On 1stDibs, find a large selection of gold watches.
  • 1stDibs ExpertDecember 5, 2024
    Many watch lovers believe that 18K gold is good for watches. An alloy, 18-karat gold is 75% pure gold and 25% other metals. The amount of gold makes the color of the alloy, whether it's white, yellow or rose, rich and visually appealing. At the same time, the addition of alloy metals increases the strength of the gold material. Explore a large selection of watches on 1stDibs.
  • 1stDibs ExpertNovember 21, 2023
    Whether a wedding band should be 14K or 18K depends on your personal preferences. Because it contains more pure gold, 18-karat gold will usually show off a richer color and be less likely to fade over time. On the other hand, 14-karat gold is less prone to scratching and damage because it has more alloy metals. Explore a large collection of gold wedding bands on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    Whether or not 18K gold wears off depends on how it's made. The finish will not wear off of a piece of jewelry or another object made entirely out of 18K gold. However, wear can occur on pieces that feature 18K gold plating, a thin layer of gold applied over another type of metal. You'll find a large selection of gold jewelry and decorative objects on 1stDibs.
  • 1stDibs ExpertMarch 22, 2022
    18K Italy gold is 18-karat gold produced in Italy. Karats tell you how much of a piece of metal is genuine gold. In the case of 18-karat gold, 18 parts are pure gold, and six parts are other metals. This makes 18-karat pieces 75 percent gold. You'll find a large collection of gold jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k is the perfect karatage for jewelry. While 24k is more prized and typically more expensive, it is also less dense and durable than 18k gold.
  • 1stDibs ExpertApril 5, 2022
    Yes, 18K gold is real gold. However, it is not pure gold. Something marked 18K is 75 percent genuine gold and 25 percent metal alloy. On 1stDibs, shop a range of expertly vetted gold jewelry from some of the world’s top sellers.
  • 1stDibs ExpertApril 5, 2022
    The mark 18K on a ring stands for 18-karat gold. 18-karat signifies that the ring is 75% pure gold and 25% other metals, such as copper, zinc or nickel. The additional metals strengthen the ring, making it more durable. Shop a range of expertly vetted 18-karat jewelry on 1stDibs.
  • 1stDibs ExpertApril 5, 2022
    18K green gold is an alloy created by mixing silver, copper and zinc with normal gold. 18K green gold is greener than 14K green gold. On 1stDibs, shop a wide collection of genuine 18K green gold from some of the world's top sellers.
  • 1stDibs ExpertAugust 26, 2024
    The difference between 24K gold and 18K gold is how much pure gold the metals contain. Something made of 24-karat gold is 99.9% pure gold, while 18-karat gold items are 75% gold and 25% alloy metals. Generally, 18-karat gold is more durable and scratch-resistant due to the presence of alloy metals. On the other hand, 24-karat gold tends to be more richly colored and expensive. On 1stDibs, find a wide range of gold jewelry.
  • 1stDibs ExpertOctober 12, 2021
    The difference between 14k and 18k rose gold metal is that the 14k rose gold is less pure than 18k. 14k rose gold has a deeper pink color because of greater amounts of copper, whereas 18k rose gold has 75% gold and appears yellow. 14k rose gold is increasingly popular due to its brighter pink hue and resistance to scratches. On 1stDibs, shop a range of vintage rose gold jewelry.
  • 1stDibs ExpertSeptember 16, 2024
    Yes, many people believe that 18k gold is worth buying. Due to the metal's durability, jewelry produced from 18-karat gold is often resistant to scratching and damage. In addition, the large amount of pure gold in the alloy gives white, rose and yellow 18-karat gold a vibrant color. However, whether or not it’s worth investing in 18-karat gold is totally subjective! At 1stDibs, we believe in buying what you love. Our shopping experience enables discovery and learning, whether you are a seasoned connoisseur or just beginning your collection. Find a diverse range of gold jewelry on 1stDibs.
  • 1stDibs ExpertFebruary 22, 2021
    Yes, 18k gold can tarnish, but it is uncommon. Pure gold does not combine easily with oxygen and therefore does not tarnish. The higher the karat, the less likely a piece of gold will tarnish.
  • 1stDibs ExpertMarch 22, 2022
    Yes, 18-karat gold can turn green in some circumstances. This type of gold is about 75 percent genuine gold and 25 percent alloy, and the other metal or metals used to produce it may react negatively to acidic substances. When this occurs, 18-karat gold may take on a greenish hue. On 1stDibs, shop a large selection of gold jewelry.
  • 1stDibs ExpertAugust 29, 2024
    Yes, 18K 750 is real gold. Gold pieces that bear this hallmark are 18-karat gold, a 75% pure gold alloy and 25% base metal. One of the most popular materials for fine jewelry, 18-karat gold shows off a rich yellow, white or rose color and resists scratching more readily than pure gold. Explore a wide variety of 18-karat gold jewelry on 1stDibs.
  • 1stDibs ExpertNovember 14, 2023
    Yes, 18-karat gold can be good for earrings. Because it is an alloy, 18-karat gold is more durable and scratch-resistant than pure 24-karat gold. You can find 18-karat gold in rich warm yellow, cooler white with warm undertones and light pink rose. On 1stDibs, explore a large collection of gold earrings.
  • 1stDibs ExpertNovember 22, 2024
    A 14-karat gold-filled watch is a watch made primarily out of base metals and then finished with a thin layer of gold. The term 14-karat refers to a gold alloy that is 58.3% pure gold and 41.7% other metals. Compared to solid gold watches, gold-filled timepieces are typically more accessibly priced. On 1stDibs, shop a diverse assortment of gold watches.
  • 1stDibs ExpertNovember 1, 2023
    The difference between 14K and 18K white gold stud earrings comes down to the content of the precious metal alloy. Stud earrings made of 14-karat white gold are 58.3% gold and 41.7% base metal, while 18-karat gold is 75% pure gold and 25% other metals. As a result, 14-karat white gold tends to be stronger and more resistant to scratching, and 18-karat gold will have a more noticeable warm-glowing yellow tinge. On 1stDibs, shop a range of white gold stud earrings.
  • 1stDibs ExpertApril 5, 2022
    Yes, gold dipped, also known as gold plated, pieces are considered real gold. The process coats a piece of metal or alloy with a layer of gold for a gold finish. Shop a collection of 18 karat gold jewelry, solid and dipped, on 1stDibs.