Swatch · Scuba Fifty Fathoms
Swatch Bioceramic Scuba Fifty Fathoms
Reference SO35B400 · Dive · 42.3 mm
Specifications
- Reference
- SO35B400
- Family
- Scuba Fifty Fathoms
- Category
- Dive
- Status
- Current
- Case material
- Bioceramic (ceramic and bio-sourced plastic)
- Case diameter
- 42.3 mm
- Case thickness
- 14.4 mm Official
- Lug-to-lug
- 48 mm Official
- Lug width
- —
- Water resistance
- 90 m
- Bezel
- Rotating, diver
- Calibre
- SISTEM51 Official
- Power reserve
- 90 h
Official product page · retrieved October 19, 2026
Does it fit your wrist?
Enter your wrist circumference. The watch appears to scale on the flat top of the wrist.
Comfortable
Lug-to-lug 48 mm on a flat top of 54.1 mm: 89 % of the width.
Lug-to-lug is 75 to 95% of the flat top, the usual comfortable range.
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 |
|---|---|---|---|
| 14.4 mm | Official | Swatch | October 19, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 48 mm | Official | Swatch | October 19, 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.
Calibre source
Official Swatch · retrieved October 19, 2026
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 Swatch models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Bioceramic MoonSwatch SO33M100 | 42 mm | 13.25 mm | 47.3 mm | — |
| MoonSwatch 1965 SO33M106 | 42 mm | 13.25 mm | 47.8 mm | — |
| MoonSwatch Mission to Earthphase SO33M700 | 42 mm | 13.25 mm | 47.8 mm | — |