A fake Baignoire 2020 is a replica of Cartier's bathtub-shaped watch, usually a listing a seller has dated to 2020 to make it sound like a specific release. Nothing about the year changes what you are buying. What matters is the case, because the Baignoire is one of the few watches where the shape does all the work: an oval that curves along the top and bottom, a domed crystal, a cabochon crown, and a small dial printed with a rail track and Roman numerals. If the case is flat, the rest does not matter.

What the 2020 tag actually means

Cartier has kept the Baignoire in the catalog for decades and changes it in small steps, so there is no single 2020 reference that every seller is copying. A listing marked that way is usually one of three things: a small yellow or rose gold case on a leather strap, a steel or two-tone piece, or an elongated Baignoire Allongee. Ask for case dimensions in millimeters instead of a year. A seller who cannot give you numbers is guessing.

The case curve comes first

The Baignoire case is a stretched oval with curved upper and lower edges, so it hugs the wrist instead of sitting on top of it like a coin. Low-grade copies machine a flat oval disc and weld on lugs. Turn the watch sideways and read the profile: the arc should run from lug to lug without a step or a seam.

The crown is the second check. Cartier sets a domed cabochon, usually a synthetic sapphire or a spinel, into a rounded crown. Cheap versions use glass or plastic that reads flat and cloudy, and the setting often sits proud of the metal. Caseback engraving on a small Baignoire should be shallow and even, not stamped so deep that it distorts the metal.

Dial details that give a copy away

The dial is small, which means every error shows without magnification. The rail track for the minutes should be one crisp line, the Roman numerals should sit at an even distance from it, and the print should be flat with no ink bleed at the edges. Look at the VII. Cartier has hidden its name inside that numeral on several of its lines, so the strokes should look deliberate under a loupe rather than printed mush.

Hands matter too. The Baignoire uses thin sword or baton hands, and on many references they are blued. Copies often ship with hands that are too thick or too short, so the tips stop well before the rail track. The Swiss made line at the bottom should be tiny and sharp.

Movement: a ticking hand is not a tell

Most Baignoire watches are quartz, so a second hand that jumps once per second is correct behavior, not proof of a fake. This trips up buyers who expect every Cartier to sweep. Elongated Allongee models have used hand-wound calibers, and those should sweep, but on a small Baignoire judge the movement on other things: how the crown feels when you set the time, whether the hands land exactly on the marks, and whether the seconds hand lines up with the printed track. Ask what is inside. A seller who says Swiss quartz and cannot name a caliber is telling you something.

Size and how it wears

The small Baignoire runs roughly 30 mm long by 22 mm wide. The Allongee stretches to about 47 by 21 mm. That gap is large on the wrist: the small version reads as a dress watch, the elongated one as a statement piece. A replica that measures two or three millimeters off will feel like a different watch, so measure before you decide the size is right.

Strap, buckle, and hardware

Straps on these watches are slim and taper toward the buckle. Check the stitching density, the spring bars, and the engraving on the clasp or ardillon buckle. Cartier finishes hardware on the underside as well; copies usually stop at the visible face. If the strap is alligator-grain leather rather than alligator, that is expected on a replica, but the taper and thickness should still look correct.

Quick checklist

• Get case dimensions in millimeters and compare them to the reference you asked for.
• Look at the side profile for a continuous curve, not a flat oval.
• Inspect the crown cabochon: domed, clean, and set flush.
• Check dial print under a loupe, including the VII and the rail track.
• Ask about the movement and whether it is quartz or hand-wound.
• Check strap taper, stitching, and clasp finish.

Work through that list and you will know more about a fake Baignoire 2020 listing than most of the sellers writing them.