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AHO 1021
Ligne: 7.75 x 11'''
Jewels: 15/17
Power Reserve: 42 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1940-1958
Size: 17.55 x 25.05 mm
Height: 3.5 mm
Hands: 1.20 x 0.71 / 0.18 mm
The AHO 1021 watch movement, also known as Durowe 7.75x11''', was in use from 1940 to 1958. It featured optional threads for a dust protection frame and included functions such as manual winding and a sub-second display.
The AHO 1021 features the following functions:
- Manual Winding
- Sub Second
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 650 | Ordinary/None | Buy staff |
| 3998 | Incabloc | Buy staff |
| 3103 | Supershock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.20 x 0.105 x 320 x 9.5 mm | GR2936 | Manual | Buy mainspring |
| 1.20 x 0.120 x 270 x 9.5 mm | Manual | Buy mainspring | |
| 1.20 x 0.105 x 300 x 9.0 mm | GR2935 | Manual | 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
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