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Unitas 520
Ligne: 7.75 x 11'''
Jewels: 15
Power Reserve: 47 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1940
Size: 17.6 x 25 mm
Height: 3.5 mm
Hands: 1.25 x 0.65 / 0.22 mm
The Unitas 520 watch movement is a manual wind movement with sub-second function, designed around 1940. It is one of several designations within the ETA movement line, potentially indicating differing base plates and bridge layouts.
The Unitas 520 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.110 x 320 x 10.0 mm | Manual | Buy mainspring | |
| 1.30 x 0.110 x 300 x 9.0 mm | GR3283 | 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
| Part Description | Reference # | Alternate | Buy |
|---|
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