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Bulova 12ECACD
Ligne: 11.5'''
Jewels: 17
Power Reserve: 44 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1942
Diameter: 26.3 mm
Height: 5.85 mm
Hands: 1.50 x 0.90 x 0.20 mm
The Bulova 12ECACD watch movement, developed in 1942, is the first caliber to feature bidirectional rotor winding. It belongs to the pilot series for the family 690 through 699, sharing a similar base-plate. Examples of the Bulova 12ECACD caliber with a calendar corresponding to the 693 are also known. This movement is automatic, has sub seconds, and its period of use is approximately 1942.
The Bulova 12ECACD features the following functions:
- Automatic Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 987 | Ordinary/None | Buy staff |
| 2706 | Incabloc | Buy staff |
| 2897 | Incabloc | Buy staff |
| 3182 | Supershock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.45 x 0.110 x 320 x 10.0 mm | GR3983X | 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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