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Gruen 621
Ligne: 19'''
Jewels: 15
Power Reserve: 37 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1925
Diameter: 43.65 mm
Height: 5.6 mm
Hands: 1.90 x 1.00 / 0.24 mm
The Gruen 621 watch movement, introduced around 1925, is a hunter calibre with a bimetallic screw balance equipped with four adjustment screws and a Breguet hairspring. Its functions include stem winding and setting, as well as a sub-second display.
The Gruen 621 features the following functions:
- Stem wind and set
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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