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Gruen 417
Ligne: 10.5'''
Jewels: 15
Frequency: 18000 vph
Type: Manual Wind
Period used: 1918-1923
Diameter: 23.69 mm
Height: 3.8 mm
The Gruen 417 watch movement was produced between 1918 and 1923. It featured a bimetallic screw balance and utilized a Breguet hairspring. The T1, T2, and T3 redesigns introduced some changes, although these differences are not specified. The initial 23.7S model had variations in its dial mounting, click, and crown mechanisms. This manual wind movement was equipped with a sub-second function.
The Gruen 417 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 1854 | Ordinary/None | Buy staff |
| 1853 | Ordinary/None | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.100 x 320 x 9.0 mm | GR3255 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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