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Tissot 28.5R-21
Ligne: 11.5'''
Jewels: 17/21/25
Lift Angle: 52°
Power Reserve: 55 hrs
Frequency: 21600 vph
Type: Automatic
Period used: ~1975
Diameter: 26 mm
Height: 5.35 mm
Hands: 1.50 x 0.90 x 0.25 mm
The Tissot 28.5R-21 is an automatic mechanical watch movement introduced around 1975. It features a sweep second hand and a quickset date function. Some models of this movement may also include an optional hack feature. The Tissot 28.5R-21 also includes Incabloc Shock Protection for added durability.
The Tissot 28.5R-21 features the following functions:
- Automatic Winding
- Calendar
- Date: quickset
- Incabloc Shock Protection
- Optional hack feature
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.100 x 500 x 10.5 mm | GR3261X | Auto | 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) | |
|---|---|---|---|
| See More |
Documents
Parts Listing
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