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Valjoux 78
Jewels: 7
Power Reserve: 34 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1903-1927
Diameter: 39.75 mm
Height: 5.0 mm
Hands: 1.50 x 0.92 / 0.26 mm
The Valjoux 78 watch movement, produced from 1903 to 1927, is a hunter calibre, model 2 with a bimetallic screw balance and Breguet hairspring. It features a negative stem mechanism with an adjustable switching point, and since approximately 1923, it has mostly been equipped with a negative stem mechanism with an additional lever. It is an American made movement that includes functions such as stem winding with switching possible through the crown or lever, sub second display, and was utilized during the period of 1903-1927.
The Valjoux 78 features the following functions:
- American Made
- 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 |
|---|---|---|---|
| 2.05 x 0.190 x 500 x 15.5 mm | GR59451DBH | 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
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| MAINSPRING 12-4-20 DB | MSN-422 | GR 5945-1-DBH | Buy part |
| MAINSPRING, 5.05X.19X20 DB | Buy part | ||
| MAINSPRING,11X4X20 DBH=MSN-422 | MS-JA110 | GR 5945-1-DBH | Buy part |
| STAFF, LONG HUB SINGLE ROLLER | 22BB/11 | 1905/ELG L | Buy part |
| STAFF, SHORT HUB SINGLE ROLLER | 22BB/10 | 22BB/10 | Buy part |
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