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Zenith 30.5
Basic Information
| Name | Zenith 30.5 |
|---|---|
| Alternative Name | Omega 625 |
| Base Calibre | Omega 625 |
| Manufacturer | Zenith |
| Launch Year | 1975 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 7.98 ‴ |
|---|---|
| Dimensions | 18 mm |
| Height | 2.5 mm |
| Further Measures | Mounting Diameter (Dm): 17.5mm Stem height (T): 1.2mm Mounting Height (F): 0.8mm |
| Power Reserve | 42 hours |
| Frequency | 21,600 vph |
| Jewels | 17 |
Complications and Specifications
| Shape | Round |
|---|---|
| Shock Protection | Incabloc |
| 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 | 1.10 x 0.55mm |
|---|---|
| Hand Count | 2 |
| Country Of Manufacture | Switzerland |
| Notes | Other data: balance staff: U2920 stem: W2935 mainspring / battery: 1.00 x 6.5 x 0.075mm |
| Signature | 1) ca. 1975: Zenith, Swiss, 17 Jewels, Unadjusted, ; Incabloc 2) 1974: 18865105, Tissot, 2141, Swiss; Incabloc (Tissot 2141) |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | May 26, 2026, 4:43:57 AM |
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