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Gruen 420SS
Ligne: 5 x 6'''
Jewels: 17
Lift Angle: 51°
Power Reserve: 40 hrs
Frequency: 21600 vph
Type: Manual Wind
Period used: 1962-1969
Size: 11.7 x 14 mm
Height: 3.25 mm
Hands: 0.80 x 0.45 mm
The Gruen 420SS watch movement was produced between 1962-1969, with a total of 434,000 units manufactured. Late samples of this movement featured an excenter regulator. It is a manual wind movement that includes an adjustable stud holder and Incabloc shock protection. This movement was in use during the period of 1962-1969.
The Gruen 420SS features the following functions:
- Adjustable Stud Holder
- Incabloc Shock Protection
- Manual Winding
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 5464 | Ordinary/None | Buy staff |
| 5464 | Incabloc | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.38 x 0.080 x 180 x 6.5 mm | Manual | Buy mainspring | |
| 1.30 x 0.065 x 180 x 5.5 mm | GR3177 | 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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