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Gruen 620
Ligne: 11.5'''
Jewels: 17/21
Power Reserve: 36 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Diameter: 25.6 mm
Height: 4.15 mm
Hands: 1.50 x 0.90 x 0.22 mm
The Gruen 620 is a manual wind watch movement that features sweep seconds, a date function that can be set by changing the 19-24h indicator, and a calendar. This movement was commonly used in watches produced around the 1950s.
The Gruen 620 features the following functions:
- Calendar
- Date: set by changing 19-24h
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 4073 | Ordinary/None | Buy staff |
| 5478 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.110 x 300 x 9.0 mm | GR4149 | Manual | Buy mainspring |
| 1.45 x 0.110 x 290 x 9.5 mm | Manual | Buy mainspring | |
| 1.45 x 0.110 x 280 x 9.0 mm | GR3981 | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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