Specifications
- Reference
- GF3811121113
- Family
- Grands Fonds
- Category
- Dive
- Status
- Current
- Case material
- Stainless steel
- Case diameter
- 39 mm
- Case thickness
- 13.75 mm Official
- Lug-to-lug
- 48.8 mm Official
- Lug width
- 22 mm Official
- Water resistance
- 300 m
- Bezel
- Rotating, diver
- Calibre
- SW200-1 Official
- Power reserve
- 38 h
- Frequency
- 28,800 vph (4 Hz)
Official product page · retrieved October 23, 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 48.8 mm on a flat top of 54.1 mm: 90 % 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 |
|---|---|---|---|
| 13.75 mm | Official | ZRC | October 23, 2026 |
Lug-to-lug
| Value | Type | Source | Date |
|---|---|---|---|
| 48.8 mm | Official | ZRC | October 23, 2026 |
Lug width
Lug width is the gap between the lugs, where the strap fits. It is not lug-to-lug.
| Value | Type | Source | Date |
|---|---|---|---|
| 22 mm | Official | ZRC | October 23, 2026 |
Calibre source
Official ZRC · retrieved October 23, 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.
- GF3811121118 · S2-Rubber
- GF3811231314 · Milanese
- GF3813231114 · Chestnut, glacé brown dial
- GF3815235118 · Crimson, gradient red dial
Other ZRC models
| Watch | Ø | Thickness | Lug-to-lug | Calibre |
|---|---|---|---|---|
| Securicode Diver 300 SC39163 | 39 mm | 13.8 mm | 48 mm | SW200-1 |
| Securicode Diver 300 (steel, 13.4 mm thick) SC3916221118 | 39 mm | 13.4 mm | 48 mm | SW200-1 |