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Alpina 720
(Alpina Straub)
Ligne: 8.75'''
Jewels: 17
Power Reserve: 38 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: ~1941
Diameter: 19.6 mm
Height: 3.25 mm
Hands: 1.04 x 0.56 / 0.16 mm
The Alpina 720 watch movement, which was used around 1941, features a bimetallic screw balance and a Breguet hairspring. It is a manual wind movement with a sub second function.
The Alpina 720 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.30 x 0.080 x 260 x 7.5 mm | GR3203T | 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 |
|---|---|---|---|
| CLUTCH LEVER W/SPRING | 435/LON 8LN | 435/LON 8LN | Buy part |
| ESCAPE WHEEL, S/S | 705/LON 8LN | Buy part | |
| MAINSPRING 1.30-.08-260 7,5 | MSS-WL5 | GR 3203-T | Buy part |
| PALLET ARBOR | 72S/10P | 714/ETA 2890 | Buy part |
| ROLLER 155X75X33 | 82S/143R | 730/36 | Buy part |
| ROLLER 155X75X33 | 82S/9R | Buy part | |
| STAFF | 100/497 | 723/LON 8LN | Buy part |
| STEM | 200/541F | 200/541F | Buy part |
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