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Hamilton 918
Basic Information
| Name | Hamilton 918 |
|---|---|
| Manufacturer | Hamilton |
| Launch Year | 1927 |
| Is COSC certified | No |
Timegrapher
Beat rate
18,000 bph
Frequency
2.5 Hz
Reference: healthy amplitude ≈ 270–315° fully wound (>200° at 24 h); beat error ideally < 0.5 ms.
Technical Details
| Lignes Dimensions | 17.62 ‴ |
|---|---|
| Dimensions | 39.75 mm |
| Height | 4.7 mm |
| Further Measures | : 12 Mounting Diameter (Dm): 38.9mm Dial Collar: 0.4mm |
| Power Reserve | 43 hours |
| Frequency | 18,000 vph |
| Jewels | 19 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Regulator Type | Pinned Regulator (or Index Regulator) |
| Movement Type | Manual |
| Escapement Type | Swiss Lever |
| Control Type | Balance Wheel |
| Winding Type | Stem Winding (Crown) |
| Setting Type | Stem Set (Crown Pull) |
Additional Information
| Hand Sizes | 1.55 x 0.95 / 0.22mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | United States |
| Notes | Remarks: 1927-1936, 17700 open face calibre sunk gold settings negative stem mechanism bimetallic screw balance with 4 adjustment screws Breguet hairspring like 916, but cap jewels for escape wheel Other data: balance staff: Ronda 1210 balance staff ronda: 1210 (12s) |
| Signature | 1934: 3150304, Hamilton Watch Co. Lancaster, Pa., Adjusted 3 Positions, 19 Jewels - 3150304 |
Compatible Parts
3 other caliber(s) share compatible parts with this caliber.
34 compatible part(s) available — Supporter feature.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Jan 28, 2024, 11:35:28 PM |
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