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Gruen 790SS
Ligne: 11.5'''
Jewels: 17/21/25
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1960
Diameter: 26 mm
Hands: 1.30 x 0.90 x 0.22 mm
The Gruen 790SS watch movement is a detached manual wind mechanism. The specific differences between the 1572, 1578, and 1659 variations are not known. This movement encompasses several functions including sweep seconds, automatic winding, and a date feature that can be set by changing the 20-24 hour mark. It was predominantly used during the approximate period of 1960.
The Gruen 790SS features the following functions:
- Automatic Winding
- Date: set by changing 20-24h
- Sweep second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.45 x 0.100 x 280 x 8.5 mm | GR3952X | Auto | Buy mainspring |
| 1.45 x 0.100 x 250 x 8.5 mm | Auto | 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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