Cartier Baignoire Mini WGBA0040 Black Dial on Leather 2026

The Baignoire is among Cartier's oldest and most architecturally resolved case shapes — an oval derived from the bathtub form that Louis Cartier developed in the early twentieth century and that the house has returned to, in various scales, ever since. The Mini Baignoire, reference WGBA0040, distills that lineage into its most refined expression: 18.5mm of 18k yellow gold, shaped to follow the wrist rather than sit on it, driven by an automatic movement and protected by a sapphire crystal. At this scale, the case is less a watch than a piece of jewelry that keeps time, and Cartier has always understood that the two ambitions are not in conflict.

The black dial is the correct choice here. Against yellow gold, a white or silver dial reads as conventional; black creates a depth that makes the gold case glow rather than glare — in low light, the lacquer seems to pull the room in. The black leather strap continues that logic, keeping the eye on the case rather than competing with it. Condition throughout is very good, with no meaningful wear to report across case, dial, crystal, or strap.

Offered in like new condition with papers; warranty valid through April 2026. Watch only — no box.