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Bulova 10COAC
Basic Information
| Name | Bulova 10COAC |
|---|---|
| Manufacturer | Bulova |
| Launch Year | 1966 |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Lift angle
50 degrees
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 10.5 ‴ |
|---|---|
| Dimensions | 23.65 mm |
| Height | 4.55 mm |
| Further Measures | Mounting Diameter (Dm): 23.3mm Stem height (T): 1.6mm Mounting Height (F): 0.9mm |
| Power Reserve | 36 hours |
| Frequency | 18,000 vph |
| Jewels | 30 |
| Lift Angle | 50 degrees |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | KIF |
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Automatic |
| Rotor Type | Central Rotor |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Automatic (Rotor-Driven) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.40 x 0.85 x 0.18mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | United States |
| Notes | Remarks: 1966- balance with two (Fig.4) or four (Fig.8) sunk adjustment screws Kif-Duofix combined settings for seconds- and escapement wheel barrel with jewel bearings rotor with heavy-metal weight selfwinding gear from beryllium bronze indirect minute with clearance-free gear (minute wheel with spring suspension) Other data: mainspring / battery: Zf852, 1.30 x 9.0 x 0.10 x 290mm |
| Signature | 1-4) 1966: M6, Bulova - U.S.A., 10COAC, 30 Jewels; Kif-Flector 5-8) 1967: M7, Bulova - U.S.A., 10COAC, 30 Jewels; Kif-Flector |
| Import Codes |
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Compatible Parts
143 other caliber(s) share compatible parts with this caliber.
146 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:31:15 PM |
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