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UMF Saturn
Basic Information
| Name | UMF Saturn |
|---|---|
| Manufacturer | UMF |
| Launch Year | 1937 |
| 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 | 18.5 ‴ |
|---|---|
| Dimensions | 41.95 mm |
| Height | 5.5 mm |
| Further Measures | Mounting Diameter (Dm): 41.0mm Winding Gear: 0.55mm Stem height (T): 2.9mm Mounting Height (F): 0.65mm |
| Power Reserve | 35 hours |
| Frequency | 18,000 vph |
| Jewels | 7 |
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 | 1.68 x 0.48 / 0.25mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Germany |
| Notes | Remarks: 1937-1961 open face calibre two-section regulator (coarse/fine) already in first generation Other data: balance staff: U440 stem: W1712 mainspring / battery: 2.00 x 16.0 x 0.22 x 420mm generations: Thiel Saturn: 1937-1940: click under barrel bridge 1940-1952: click on barrel bridge, partially serial number UMF Saturn: 1952-1960: signature under train bridge: calendar week and year UMF 15: 1960-1961: calibre signature |
| Signature | 1-2) 1953: 39 53 3-4) 1954: 3 54 |
Compatible Parts
No parts linked yet for this caliber.
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:34:14 PM |
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