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Hermann Becker 81
(Becker)
Jewels: 19
Power Reserve: 50 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1952-1954
Size: 17.55 x 24.9 mm
Height: 3.75 mm
Hands: 1.12 x 0.64 / 0.20 mm
The Hermann Becker 81 watch movement is a manual wind movement that was produced from 1952 to 1954, with approximately 8000 units made during that time. This movement, known as model 4, features a Breguet hairspring and a lever with cap jewels. Additionally, it includes a sub-second function.
The Hermann Becker 81 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| CANNON PINION | 6581/ELG | 150-671/ELG | Buy part |
| CANNON PINION, CURVED DIAL | 6582/ELG | 151-671/ELG | Buy part |
| DIAL WASHER | 6590/ELG | 273-671/ELG | Buy part |
| JEWEL, U/L PAL/ESC HOLE UNSET | 6235/ELG | 112-672/ELG | Buy part |
| MAINSPRING 4-11-12 DBH | MS-JA126 | GR 3284-DBH | Buy part |
| MAINSPRING, 15/0 | 258-557/ELG .0038 | Buy part | |
| PALLET ARBOR | 6482/ELG | 2-671/ELG | Buy part |
| RATCHET WHEEL SEE 5563C10 | 6605C12/ELG | 290-671/ELG | Buy part |
| SCREW, TIMING | 6284/ELG | 175-671/ELG | Buy part |
| STAFF, 15/0S | 6502/ELG | 264-670/ELG | Buy part |
| STAFF, 15S | 22BB/146 | 6502/ELG P7.5 | Buy part |
| UPPER PALLET HOLE JEWEL UNSET | 6495/ELG | 114-670/ELG | Buy part |
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