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IWC 8541B
Basic Information
| Name | IWC 8541B |
|---|---|
| Manufacturer | IWC |
| Launch Year | 1970 |
| Is COSC certified | No |
Technical Details
| Lignes Dimensions | 12.5 ‴ |
|---|---|
| Dimensions | 28.2 mm |
| Height | 5.9 mm |
| Further Measures | Mounting Diameter (Dm): 28.0mm |
| Power Reserve | 44 hours |
| Frequency | 19,800 vph |
| Jewels | 25 |
Complications and Specifications
| Shape | Round |
|---|---|
| Complications |
|
| Shock Protection | Incabloc |
| 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 0.80mm |
|---|---|
| Hand Count | 3 |
| Country Of Manufacture | Switzerland |
| Notes | Remarks: 1970-1974, 162000 (8541, 8541B) excenter winding mechanism, if 25 jewels with ruby-rollers double excenter regulator for curb pins and stud carrier Breguet hairspring adjustment screws on balance spokes Other data: balance staff: U3156 stem: W2269 mainspring / battery: 1.10 x 10.5 x 0.12mm Ranfft mentioned about this caliber: There are variants with this quantity of jewels 23, 25 |
| Signature | 1-2) 1970: 2020506, International Watch Co Swiss; Incabloc (8541S, 23 jewels) 3-4) 1973: 2178345, International Watch Co Swiss; Incabloc (8541H, 25 jewels) |
| Import Codes |
Metadata
| Created At | Sep 15, 2023 |
|---|---|
| Updated At | Apr 23, 2025, 11:33:03 PM |
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