The Bergeon Swiss-made precision watchmaking tool designed for opening and closing waterproof watch cases with grooved or fluted screw-down case backs. Particularly suited for Rolex Oyster cases, this professional case opener provides a secure and precise fit for servicing and maintenance.
Features:
- Swiss-made professional watchmaking tool.
- Designed for opening and closing grooved waterproof watch cases.
- Particularly suitable for Rolex Oyster-style case backs.
- Supplied with six interchangeable grooved chucks.
- Precision-milled profiles for secure engagement with case-back grooves.
| Included Chucks |
| No |
∅ A mm |
Angle |
Number of Teeth |
Weight |
| 0 |
18.50 |
28° |
90 |
25 |
| 1 |
20.20 |
28° |
96 |
25 |
| 2 |
22.50 |
28° |
112 |
25 |
| 3 |
26.50 |
28° |
128 |
31 |
| 4 |
28.30 |
28° |
144 |
32 |
| 5 |
29.50 |
28° |
144 |
32 |
