Seiko 1104A
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| Seiko 1104A |
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Description
Seiko handwind movement are rather rare in Europe.
Even more rare are those tiny form movement, which even
contain a center second indication. Such a movement is
the Caliber 1104A, which shows the high quality even of
simpler Seiko movements.
The large balance with four legs is beared in an inhouse
Diashock system and some of the jewels are located in
chatons.
Technical data
| Manufacturer | Seiko |
| Caliber | 1104A |
| Number of jewels | 17 |
| Escapement | Anchor with pallets |
| Shock protection(s) | Diashock (Seiko) |
| Balance cock direction | counterclockwise |
| Hairspring stud | moveable |
| Regulator type | Hairspring key |
| Movement construction | Fork
Escapement wheel, Fourth wheel, Third wheel, Center wheel
Center second pinion
Mainspring barrel |
| Features | SCI |
| Functions | Hour, minute, second |
| Beats per hour | 21600 |
| Size | 53/4 x 63/4''' |
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| Factsheet |
Usage gallery
