Calibre catalogue / Extended reserve / 7550A
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7550A fitting drawing (PDF)
Dimensions, stem height and hand fitting. Keyed to the base calibre, so sibling references share this drawing. Supplied for casing and fitting purposes only.
Extended reserve
7550A
7 Series
- —Centre seconds
- —Skeletonised
| Specification | |
|---|---|
| Size | 30 mm (1.181 in) |
| Height | 5.23 mm (0.206 in) |
| Jewels | 21 |
| Frequency | 28,800 vph (4 Hz) |
| Power reserve | 80 h |
| Finish colour | White |
Check dimensions against the fitting drawing before tooling a case.
Same base calibre
Variants
7000A
Extended reserve
Centre seconds
30 mm · 5.23 mm · 80 h
7010A
Extended reserve
Small seconds
30 mm · 5.23 mm · 80 h
7012A
Extended reserve
Small seconds
30 mm · 5.23 mm · 80 h
701AA
Extended reserve
Small seconds · Fine finishing
30 mm · 5.23 mm · 80 h
70A5A
Extended reserve
Centre seconds · Fine finishing
30 mm · 5.23 mm · 80 h
70G0A
Extended reserve
Centre seconds · Fine finishing
30 mm · 5.23 mm · 80 h