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IWC 73
Ligne: 8.75'''
Jewels: 7/15/17
Power Reserve: 45 hrs
Frequency: 18000 vph
Type: Manual Wind
Period used: 1935-1967
Diameter: 19.7 mm
Height: 3.45 mm
Hands: 1.20 x 0.65 / 0.18 mm
The IWC 73 watch movement, produced from 1935 to 1967, had a production quantity of less than 16,000,000 units. It did not feature a separate escape-wheel cock. This movement family incorporated various balances, with some having identical calibre designations while others differed. The catalogues do mention small differences in these movements, but the components can be interchanged easily. No known differences exist among the 970, 980, 987, 999, 1014, 1036, 1047, 1056, 1090, 1210, 1217, 1251, 1254, 1276, 1375, 1386 calibres. Some calibres with a thickness (H) of 3.0mm resemble the IWC 73. The movement possesses the functions of manual winding and a sub-second display.
The IWC 73 features the following functions:
- Manual Winding
- Sub Second
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
|---|---|---|---|
| 1.60 x 0.080 x 250 x 7.5 mm | Manual | Buy mainspring | |
| 1.60 x 0.080 x 260 x 7.0 mm | GR4446 | 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) |
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Documents
Parts Listing
| Part Description | Reference # | Alternate | Buy |
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