Cartier Baignoire Small WJBA0054: Yellow Gold and Diamonds Guide

The Cartier Baignoire Small WJBA0054 is the diamond-set version of Cartier's oval dress watch in 18 ct yellow gold: a small-model Baignoire case with brilliant-cut diamonds around the bezel, a silvered dial with black Roman numerals, a Cartier quartz movement and a leather strap. Cartier revived the Baignoire as a core line in 2023 with the small and mini models, and the diamond-set yellow gold version has appeared in the catalogue under the references WJBA0038 and WJBA0054, which is why Bizak's product page carries both. This guide covers the specifications, where the reference sits in the Baignoire range, how the oval case wears, how it compares with the plain yellow gold model and the Tank Louis Cartier, price context in 2026 and what to check before buying. Bizak & Co. sources the WJBA0054 to order; the Baignoire collection lists the configurations we can seek.

Last reviewed on October 4, 2026 by Filip Biczak. Prices are dated observations, not quotes.

Cartier Baignoire Small WJBA0054 specifications

Sources: Cartier publishes the current specification and list price on its Baignoire collection pages; the Federation of the Swiss Watch Industry covers the Swiss made rules that govern quartz movements like this one, and Sotheby's watches department records results for vintage and modern Baignoire examples at auction.

What is the Cartier Baignoire?

The Baignoire is Cartier's oval watch. Louis Cartier drew an oval wristwatch in 1912, the shape was refined through the 1950s, and the name, which means bathtub in French, stuck because of the curved, deep case flank. Through the 1960s and 1970s the Baignoire and its elongated sister, the Baignoire Allongée, were among the Paris house's most recognisable shapes, alongside the Tank and the Crash. Cartier kept the Baignoire in production in small numbers for decades, then relaunched it in 2023 as a full line with the small and mini models in yellow gold, a gadrooned case edge, a silvered Roman dial and a quartz movement. The diamond-set small model, which is what the WJBA0054 is, followed as the dressier option. The 2023 relaunch deliberately returned to the slim 1950s proportions rather than the larger 2000s versions, so the current watch is small by modern standards and is meant to be.

Why does the product page show two references, WJBA0054 and WJBA0038?

Cartier changes a reference when the strap, buckle or packaging specification changes, even if the case, dial and movement are unchanged. The diamond-set small Baignoire in yellow gold on a leather strap has been catalogued as WJBA0038 and as WJBA0054, and Bizak's listing names both because the watch we source may carry either code on its certificate depending on production date. The case, the diamond setting, the dial and the quartz calibre are the same configuration. When you ask for a quote, ask which reference is printed on the Cartier certificate and warranty card for the specific example on offer; that is what matters for a future sale or service claim.

How does the Baignoire Small wear?

The small model is about 32 mm tall and 24 mm wide, so it sits on the wrist like a 24 mm watch in width and like a 32 mm watch in height. The oval sits low because the case is thin and the strap leaves the case at a sharp angle, which is why a Baignoire reads as jewellery first and watch second. On wrists up to about 16 cm (6.3 inches) it looks proportionate; above that it reads as a deliberately small dress watch, which many buyers want. The diamonds add brightness but no bulk because they are set into the bezel rather than on a separate ring. The leather strap is narrow and tapers to a small gold buckle; in a humid climate such as Miami's, a strap will need replacing every couple of years with regular wear, and Cartier supplies replacements through its boutiques. The yellow gold case marks more easily than steel, so the first hairlines appear quickly; a boutique polish restores them but removes a little metal each time.

WJBA0054 vs the plain yellow gold Baignoire Small

The plain model is the purist's Baignoire and the one closest to the 1950s original. The diamond-set WJBA0054 is the gift and evening watch; because the diamonds are factory-set by Cartier, the premium holds on resale in a way that aftermarket setting never does. If you are choosing between the two, decide whether the watch will be worn with other jewellery; the plain gold case pairs with anything, the diamond bezel competes with a diamond bracelet or ring.

Baignoire or Tank Louis Cartier?

Buyers who want a yellow gold Cartier dress watch on a strap usually cross-shop the Baignoire with the Tank Louis Cartier. The Tank is rectangular, slightly larger on the wrist, and available with a hand-wound mechanical movement, which matters to collectors who would rather wind a watch than change a battery. The Baignoire is quartz only in the small and mini sizes, thinner, and reads as a piece of jewellery because of the oval. The Tank is the safer long-term buy because it has been in continuous production for a century and resale is predictable; the Baignoire is the more distinctive choice and the one that gets noticed. The Tank collection lists the Tank models we can source, and the ladies' watches collection groups both lines with alternatives from other houses.

How much is a Cartier Baignoire WJBA0054? Price context in 2026

• Retail. Cartier publishes its US list price on the Baignoire product page and revises it periodically; the diamond-set small model in yellow gold sits several thousand dollars above the plain gold version. Cartier sells through its own boutiques and selected retailers, and the Baignoire has been available to walk in and buy in most markets, unlike steel sports watches from other brands.
• Secondary market. Unworn diamond-set Baignoires with the full Cartier set have generally been offered at or a little below Cartier's list price in 2025 and 2026, because supply at retail is not constrained. Pre-owned examples trade at a discount that depends mainly on strap condition and whether the Cartier certificate is present.
• Bizak catalogue ask. Bizak's sourced catalogue listed the WJBA0054 at US$17,999 brand new on October 4, 2026, sourced to order. That figure describes what we saw on that date and will move with Cartier's list price and the gold price.

Ask for a dated quote for the exact reference, strap and card date. If you are weighing a Cartier against a steel sports watch for value retention, our Rolex price guide explains how we compare quotes across brands.

Is the Baignoire a good investment?

It is a watch to wear, not to trade. Gold Cartier dress watches with quartz movements depreciate from retail in the first years and then track the gold price and Cartier's own list-price increases. Vintage Baignoires from the 1960s and 1970s, particularly the Allongée and the Paris-signed examples, have appreciated strongly at auction, but that is a separate market from a current production quartz model. Buy the WJBA0054 because the oval, the diamonds and the yellow gold are what you want on the wrist; if resale matters, buy unworn with the full Cartier set, keep the certificate and the box, and ask us for a written cash-buy assessment before you commit.

Buying a Cartier Baignoire WJBA0054: what to check

• Certificate and warranty. A new Baignoire comes with a Cartier certificate of authenticity stating the reference and serial, and a warranty card with the boutique or retailer stamp and date. The reference on the certificate should read WJBA0054 or WJBA0038 and match the caseback engraving.
• Caseback engravings. Cartier engraves the reference, the serial number and the gold hallmarks on the caseback; the engraving should be crisp and the serial should match the certificate.
• Diamond setting. Factory-set stones sit evenly with uniform prongs or bead settings and matched brightness; uneven spacing, a loose stone or a dull stone among bright ones suggests aftermarket work or damage. Ask for macro photographs of the full bezel.
• Dial and hands. Black Roman numerals printed cleanly, the secret Cartier signature in a numeral where the model carries one, and blued-steel hands with no corrosion spots.
• Crown cabochon. The sapphire cabochon should be intact with no chips; it is the most frequently damaged part of a Cartier.
• Battery and movement. Ask when the battery was last changed; a watch that has sat unsold for a long time may need one. A dead battery left in place can leak and damage the movement.
• Strap and buckle. The gold buckle should carry Cartier hallmarks; the strap on an unworn watch should be supple with no creasing at the buckle holes.
• Price against the band. A diamond-set gold Cartier offered well under the market is the single most reliable warning sign.

Our authentication process describes what we inspect before dispatch.

Quick answers

How much is a Cartier Baignoire WJBA0054?

Cartier publishes the current list price on its Baignoire page; the diamond-set small model sits several thousand dollars above the plain yellow gold version. Bizak's sourced catalogue listed the WJBA0054 at US$17,999 brand new on October 4, 2026, sourced to order.

What is the difference between WJBA0054 and WJBA0038?

They are two Cartier catalogue codes for the same configuration: the small Baignoire in 18 ct yellow gold with a diamond-set bezel, silvered Roman dial, quartz movement and leather strap. Cartier updates a reference when strap or packaging details change; the watch itself is the same.

Is the Cartier Baignoire quartz or automatic?

The small and mini Baignoire models, including the WJBA0054, use a Cartier quartz movement with hours and minutes only. Mechanical movements appear only in the larger Baignoire Allongée models.

How big is the Cartier Baignoire Small?

Cartier lists the small model at roughly 32 mm by 24 mm and under 7 mm thick. It wears as a small dress watch and suits wrists up to about 16 cm best, though it is often chosen as a deliberately small watch on larger wrists.

Can you swim with a Cartier Baignoire?

No. The Baignoire is splash-resistant for everyday wear, not rated for swimming or showering. Water inside a quartz dress watch is the most common cause of an expensive repair.

Request a Cartier Baignoire WJBA0054 sourcing quote

Tell us whether you need the WJBA0054 or WJBA0038 reference, the strap colour, condition and whether the Cartier certificate and warranty card are required, plus your budget and timing, through our sourcing enquiry form. We confirm the specific watch, photographs, certificate and final price before you commit. Catalogue entry: Cartier Baignoire Small WJBA0054 (WJBA0038); browse the Baignoire collection, the Cartier collection, or sell or trade your Cartier.

Related reading: La Panthère de Cartier yellow gold guide · La Panthère de Cartier white gold diamonds guide · Watch nicknames explained · Vacheron Constantin Overseas Dual Time 7900V guide.