Seiko 9SA5 Movement Details
Seiko caliber 9SA5 is a high grade automatic (with hand winding) watch movement. Production was in the 2020s.
|Power reserve:||80 hours|
|Accuracy:||+5/-3 seconds/day (Seiko "AA" standard)|
|Day / date?||Date only|
|GMT / world time?||No|
|Number of jewels:||47|
|Notes:||Has twin mainspring barrels. This movement has a "dual impulse" escapement which efficiently transfers energy to the balance wheel both indirectly through the pallet fork and directly from the escape wheel.|