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Bulova 12B
Ligne: 12.75'''
Jewels: 17/18
Power Reserve: 45 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1955-1967
Diameter: 29.4 mm
Height: 5.3 mm
Hands: 1.40 x 0.85 x 0.21 mm
The Bulova 12B watch movement is a manually-wound mechanical movement that was produced in over 100,000 units between 1955 and 1967. It includes a sweep second function and some versions were designed as chronometers, with a few thousand units produced under the name "Unima."
The Bulova 12B features the following functions:
- Manual Winding
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.70 x 0.130 x 360 x 11.5 mm | Manual | Buy mainspring |
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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