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Blancpain 21
Ligne: 18'''
Jewels: 7/15
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1889-
Diameter: 40.65 mm
Height: 7.05 mm
Hands: 1.78 x 0.55 / 0.26 mm
The Blancpain 21 is an open face calibre watch movement that was introduced in 1889. It features a bimetallic screw balance and a ratchet mechanism located on the dial side, which can be unlocked from the rear side by a marked screw head. The crown mechanism includes a rocker bar. Additionally, this movement is equipped with a straight long lever that has a counterweight and hidden pallets. The Blancpain 21 movement is designed for stem winding and pin setting, and it includes a sub second function. This movement has been in use since 1889.
The Blancpain 21 features the following functions:
- Stem wind and pin set
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 2.50 x 0.190 x 15.5 mm | Manual | Buy mainspring |
Parts Listing
| Part Description | Reference # | Alternate | Buy |
|---|---|---|---|
| MAINSPRING 2.50-.20-480 17 | 770/LON 18L | 6702-T | Buy part |
| STEM | 200/567F | Buy part |
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