No products in the cart.
Return To ShopWatch Database
Gruen 425
Jewels: 17
Power Reserve: 33 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1886-1895
Diameter: 45.75 mm
Height: 10.1 mm
Hands: 2.46 x 1.27 / 0.30 mm
The Gruen 425 watch movement, produced between 1886-1895 with a total of 98,000 units, is an open face calibre model 5. It features a bimetallic screw balance and a Breguet hairspring. The movement offers optional regulation through a nut on the threaded bow. Notably, it incorporates a ratchet under the base plate and utilizes a negative stem mechanism with a rocker bar. The functions of the movement include stem winding, which can be activated through either the crown or lever, and a sub-second display.
The Gruen 425 features the following functions:
- Stem wind, switching by crown or lever
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.90 x 0.230 x 540 x 18.0 mm | DBH | Buy mainspring |
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
All watch database content © EmmyWatch LLC. Unauthorized redistribution of content is strictly prohibited. All rights are reserved.
