Seiko 9SC5 Movement Details

Seiko caliber 9SC5 is a high grade automatic (with hand winding) watch movement. Production started around 2023.
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Sub-brands: Grand Seiko
Power reserve:72 hours
Accuracy:+5/-3 seconds/day (Seiko "AA" standard)
Day / date?Date only
GMT / world time?No
Rate:36,000 bph
Number of jewels:60
Development division:Shizukuishi Studio (Iwate Prefecture, Japan)
Notes:Officially named "Tentagraph", this is Grand Seiko's first mechanical chronograph. It features the twin barrel cal. 9SA5 as its base. 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. The chronograph function uses a vertical clutch and column wheel for high accuracy.
Related movements: 9SA5