Specifications
- Reference
- WGBA0040
- Family
- Baignoire
- Category
- Classic
- Status
- Current
- Case material
- 18 ct yellow gold
- Case diameter
- 18.7 mm
- Case thickness
- 7.5 mm Official
- Lug-to-lug
- 24.6 mm Official
- Lug width
- —
- Water resistance
- 30 m
- Bezel
- —
- Calibre
- Quartz · calibre not named by the brand
Official product page · retrieved October 20, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Looks small
Lug-to-lug 24.6 mm on a flat top of 54.1 mm: 46 % of the width.
Lug-to-lug is under 75% of the flat top. Fine to wear, but the watch may look small on you.
Measurements and sources
Brands rarely publish thickness, lug width and lug-to-lug together. Each observation below is kept separate, with who gave it.
Case thickness
| Value | Type | Source | Date |
|---|---|---|---|
| 7.5 mm | Official | Cartier | October 20, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 24.6 mm | Official | Cartier The brand publishes the case length (24.6 mm x 18.7 mm, length x width); the width is the size across. | October 20, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
No source gave this figure yet.
Other versions in the same case
These references differ only by dial, bracelet or bezel colour. The brand gives them the same case dimensions, so the figures on this page apply to them too.
Other Baignoire references
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Baignoire, small model WGBA0042 | 23.1 mm | 6.97 mm | 31.4 mm | — |
Other Cartier models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Panthère de Cartier, mini model WSPN0012 | 18.5 mm | 5.74 mm | 25.1 mm | — |
| Tank Américaine, small model WSTA0117 | 19.4 mm | 6.76 mm | 35.4 mm | — |
| Tank Louis Cartier, mini model WGTA0352 | 16.5 mm | 6.05 mm | 24 mm | — |
| Tank Française, small model WSTA0129 | 21.2 mm | 6.79 mm | 25.7 mm | — |
| Tank Louis Cartier, small model WGTA0342 | 22 mm | 6.35 mm | 29.5 mm | — |
| Panthère de Cartier, small model WSPN0013 | 22 mm | 6.05 mm | 30.3 mm | — |
Show 42 more
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Tank small model WSTA0107 | 22 mm | 6.6 mm | 29.5 mm | — |
| Tank Américaine, mini model WSTA0116 | 15.2 mm | 6.52 mm | 27.9 mm | — |
| Tressage HPI01689 | 14.4 mm | 7.62 mm | 30.5 mm | — |
| Tank Cintrée WHTA0037 | 23 mm | 6.95 mm | 46.3 mm | — |
| Santos de Cartier, large model (yellow gold, manual) WHSA0042 | 39.7 mm | 9.08 mm | 47.5 mm | — |
| Santos-Dumont Skeleton Micro-Rotor, large model (yellow gold) WHSA0043 | 31.4 mm | 8 mm | 43.5 mm | — |
| Santos-Dumont, extra-large model WGSA0108 | 33.9 mm | 7.5 mm | 46.6 mm | — |
| Tortue, small model WGTO0015 | 26.8 mm | 7.18 mm | 33.4 mm | — |
| Tank Américaine Skeleton, large model WHTA0041 | 24.4 mm | 8.24 mm | 44.4 mm | — |
| Tank Américaine, large model WSTA0083 | 24.4 mm | 8.54 mm | 44.4 mm | — |
| Ballon Bleu de Cartier 28 mm WSBB0073 | 28 mm | 9.35 mm | — | — |
| Ballon Bleu de Cartier 33 mm WSBB0030 | 33 mm | 10.16–10.5 mm⚠ | — | — |
| Ballon Bleu de Cartier 36 mm WSBB0048 | 36 mm | 12.06 mm | — | — |
| Ballon Bleu de Cartier 42 mm WSBB0026 | 42 mm | 13.03 mm | — | 1847 MC |
| Panthère de Cartier, large model WSPN0016 | 31 mm | 6.71 mm | 42 mm | — |
| Panthère de Cartier, medium model WSPN0015 | 26.7 mm | 6.44 mm | 36.5 mm | — |
| Roadster, large model WSRD0014 | 38.8 mm | 10.06 mm | 47.2 mm | — |
| Roadster, medium model WSRD0019 | 34.9 mm | 9.71 mm | 42.5 mm | — |
| Santos de Cartier Skeleton, large model (rose gold) WHSA0016 | 39.7 mm | 9.08 mm | 47.5 mm | 9619 MC |
| Santos de Cartier Skeleton, large model (steel) WHSA0015 | 39.7 mm | 9.08 mm | 47.5 mm | 9611 MC |
| Santos de Cartier, large model WSSA0018 | 39.8 mm | 9.38 mm | 47.5 mm | 1847 MC |
| Santos de Cartier, large model (titanium) WSSA0089 | 39.8 mm | 9.38 mm | 47.5 mm | — |
| Santos de Cartier, medium model WSSA0029 | 35.1 mm | 8.82 mm | 41.9 mm | 1847 MC |
| Santos de Cartier, small model WSSA0082 | 27 mm | 7.08 mm | 34.5 mm | — |
| Santos-Dumont Skeleton Micro-Rotor, large model WHSA0032 | 31.4 mm | 8 mm | 43.5 mm | 9629 MC |
| Santos-Dumont, extra-large model (steel) WSSA0032 | 33.9 mm | 7.5 mm | 46.6 mm | 430 MC |
| Santos-Dumont, large model WSSA0085 | 31.4 mm | 7.3 mm | 43.5 mm | — |
| Santos-Dumont, large model (steel, manual) WSSA0046 | 31.4 mm | 7.3 mm | 43.5 mm | 430 MC |
| Santos-Dumont, small model WSSA0086 | 27.5 mm | 7.3 mm | 38 mm | — |
| Tank à Guichets WGTA0237 | 24.8 mm | 6 mm | 37.6 mm | — |
| Tank Française, large model WSTA0067 | 30.5 mm | 10.11 mm | 36.7 mm | — |
| Tank Française, medium model WSTA0105 | 27 mm | 7.08 mm | 32 mm | — |
| Tank large model WSTA0106 | 25.5 mm | 6.6 mm | 33.7 mm | — |
| Tank Louis Cartier, large model WGTA0373 | 27.8 mm | 8.18 mm | 38.1 mm | — |
| Tank Louis Cartier, medium model WGTA0303 | 25.5 mm | 6.6 mm | 33.7 mm | — |
| Tank Louis Cartier, medium model (rose gold) WGTA0011 | 25.5 mm | 6.6 mm | 33.7 mm | 1917 MC |
| Tank Must, extra-large model WSTA0053 | 31 mm | 8.37 mm | 41 mm | — |
| Tank Normale, large model WHTA0032 | 25.7 mm | 6.85 mm | 32.6 mm | — |
| Tortue, large model HPI01830 | 32.9 mm | 7.18 mm | 41.1 mm | — |
| Santos de Cartier Chronograph, large model WSSA0083 | 37.7 mm | 11.6 mm | 47.5 mm | — |
| Santos de Cartier Dual Time, large model WSSA0076 | 37.7 mm | 10.1 mm | 47.5 mm | — |
| Tortue Chronograph, large model WHTO0012 | 34.8 mm | 10.23 mm | 43.7 mm | — |