No products in the cart.
Return To ShopWatch Database
Junghans 257A
Jewels: 17
The Junghans 257A watch movement is an open face calibre designed and manufactured in the United States. It features a total of 17 jewels, enhancing its overall performance and accuracy.
The Junghans 257A features the following functions:
- American Made
- Open Face Calibre
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
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 |
|---|---|---|---|
| BARREL ARBOR | 101040/HAM | 324/HAM | Buy part |
| ESCAPE PINION | 322041/HAM | 430/HAM | Buy part |
| PALLET ARBOR, FRICTION S/S | 103045/HAM | 433F/HAM | Buy part |
| PALLET ARBOR, THREADED S/S | 103044/HAM | 433A/HAM | Buy part |
| PALLET ARBOR, TWO-PIECE S/S | 103043/HAM | 433/HAM | Buy part |
| RATCHET WHEEL | 683041/HAM | 311A/HAM | Buy part |
| SCREW, REGULATOR MICRO ADJ 5MM | 482040/HAM | 482040/HAM | Buy part |
All watch database content © EmmyWatch LLC. Unauthorized redistribution of content is strictly prohibited. All rights are reserved.
