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Waltham COLONIAL A
Ligne: 11.5'''
Jewels: 17
Power Reserve: 46 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1955
Diameter: 26 mm
Height: 5.75 mm
Hands: 2.10 x 1.30 x 0.90 x 0.22 mm
Base: A. Schild 1475
The Waltham COLONIAL A watch movement, developed in 1957, shares similarities with the 780 movement, however, the specific differences between the two are unknown. The 25.6-821 movement is equipped with manual-wind alarm and sweep second functions, along with an alarm function and Incabloc shock protection. This movement was commonly used around the approximate period of 1955.
The Waltham COLONIAL A features the following functions:
- Incabloc Shock Protection
- Manual-wind alarm
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.50 x 0.100 x 320 x 9.0 mm | GR4123 | Manual | Buy mainspring |
| 1.50 x 0.100 x 300 x 9.0 mm | GR4122 | Manual | Buy mainspring |
| 1.50 x 0.100 x 290 x 9.0 mm | Manual | Buy mainspring |
Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) | |
|---|---|---|---|
| See More |
KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
|---|
Documents
Parts Listing
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