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Bulova 12ECAD
Ligne: 13'''
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Automatic
Period used: ~1972
Diameter: 29.1 mm
Height: 6.0 mm
Hands: 1.75 x 1.20 x 0.21 mm
The Bulova 12ECAD watch movement is equipped with a pin-lever escapement and features a sophisticated excenter self-winding mechanism with just one gear stage. It incorporates an excenter on the rotor arbor that controls a lever, which in turn drives a ratchet wheel through two clicks. On the dial side, a planet differential gear transmits the combined power from both automatic and manual winding, effectively achieving different gear ratios and ensuring the independent operation of both winding sources. This movement offers automatic winding, sweep second, and date functions. It was introduced around 1972.
The Bulova 12ECAD features the following functions:
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
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Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.100 x 10.0 mm | Auto | 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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