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Unitas 439
Ligne: 5.75 x 8.5'''
Jewels: 17/21
Lift Angle: 52°
Power Reserve: 40 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1950
Size: 12.85 x 19.5 mm
Height: 3.8 mm
Hands: 1.20 x 0.60 mm
The Unitas 439 watch movement is a manual wind mechanical movement that was used in watches around the period of approximately 1950. There are variations within the ETA 234x and 235x series, including the 2340-2343, 2345-2353, 2353a, 2354a, 2355, and 2356. The specific differences between these variations are not known.
The Unitas 439 features the following functions:
- Manual Winding
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 3726 | Ordinary/None | Buy staff |
| 3806 | Incabloc | Buy staff |
| 3875 | Supershock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.090 x 300 x 8.5 mm | GR4465 | Manual | Buy mainspring |
| 1.60 x 0.085 x 265 x 8.0 mm | Manual | Buy mainspring | |
| 1.60 x 0.085 x 260 x 7.5 mm | GR4455 | 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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