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Bulova 5AP
Ligne: 18.5'''
Jewels: 15/17
Power Reserve: 35 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1920
Diameter: 41.65 mm
Height: 4.7 mm
Hands: 1.90 x 1.15 / 0.28 mm
The Bulova 5AP is an open face calibre watch movement. It offers optional Breguet hairspring and varying bridge shapes. It possibly features a left handed ratchet-wheel screw, although this is not confirmed. There are differences not known between the 245, 251, 261, 267, 273, and 279, which are likely catalog designations for differing bridge shapes. The movement provides stem winding and setting functionality, along with a sub second function. It was commonly used during the period approximately around 1920.
The Bulova 5AP features the following functions:
- Stem wind and set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.00 x 0.210 x 500 x 17.0 mm | Manual | Buy mainspring | |
| 1.90 x 0.210 x 520 x 16.5 mm | GR5676 | 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
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