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Tissot 28.5R-621
Ligne: 12.75'''
Jewels: 17
Lift Angle: 50°
Power Reserve: 42 hrs
Frequency: 19800 vph
Type: Automatic
Period used: 1953-1955
Diameter: 28.5 mm
Height: 6.1 mm
Hands: 1.40 x 0.75 x 0.18 mm
The Tissot 28.5R-621 watch movement, part of the 28.10 and 30.10 family, was produced from 1953 to 1955, with over 1,300,000 units manufactured during this period. It featured various functions including automatic (bumper), sweep seconds, date, incabloc shock protection, and a calendar. This particular movement contributed to the watch's reliability and accuracy, partially functioning as a chronometer.
The Tissot 28.5R-621 features the following functions:
- Automatic (bumper)
- Calendar
- Date
- Incabloc Shock Protection
- Sweep second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 1878 | Ordinary/None | Buy staff |
| 1860 | Ordinary/None | Buy staff |
| 3798 | Kif | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.10 x 0.095 x 300 x 9.0 mm | GR2605X | Auto | Buy mainspring |
| 1.10 x 0.100 x 250 x 8.5 mm | 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) |
|---|
Documents
Parts Listing
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