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Seiko 1400-6630
The Longines caliber 30CH is a manual-wind column-wheel chronograph movement with a flyback function. Developed in 1947 and manufactured until the 1970s, it is recognized as a significant chronograph movement. It offers the following functions: hours, minutes, central chronograph seconds, small seconds at 9:00, and a 30-minute counter at 3:00.
The Seiko 1400-6630 features the following functions:
- 30-minute counter at 3:00
- Central chronograph seconds
- Hours
- Minutes
- Small seconds at 9:00
Balance Staff Listing
| Ronda Reference # | Shock System | Buy |
|---|---|---|
| 3749 | Ordinary/None | Buy staff |
| 3113 | Supershock | Buy staff |
Mainspring Listing
| Dimensions | GR Reference # | End Type | Buy |
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Incabloc Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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KIF Part Listing
| Block # (Top/Bottom) | Cap Jewel # (Top/Bottom) | Spring # (Top/Bottom) |
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Parts Listing
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