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Bettlach 8021N
(EB)
Ligne: 8 x 11.5'''
Jewels: 17
Lift Angle: 47°
Power Reserve: 43 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1952
Size: 17.8 x 26.55 mm
Height: 3.7 mm
Hands: 1.33 x 0.76 / 0.20 mm
The Bettlach 8021N is a manual wind mechanical watch movement featuring an indirect sub second function. This movement was commonly used in watches produced around 1952.
The Bettlach 8021N features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.100 x 360 x 10.0 mm | T | Buy mainspring | |
| 1.60 x 0.105 x 260 x 8.5 mm | T | Buy mainspring | |
| 1.50 x 0.100 x 400 x 11.0 mm | GR4127T | T | 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 1.60-.105-260 8,5 | MSS-WL7 | GR 4127-T | Buy part |
| STEM | 401/1343 | 401/1343 | Buy part |
| STEM, TAP 10 | 200/582F | 200/582F | Buy part |
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