Seiko 8R48 Movement Details

Seiko caliber 8R48 is an automatic (with hand winding) watch movement.
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Sub-brands: Presage
Power reserve:45 hours
Accuracy:+25/-15 seconds/day (Seiko "C" standard)
Day / date?Date only
GMT / world time?No
Chronograph?Yes
Hacking?Yes
Rate:28,800 bph
Number of jewels:34
Lift angle:52º
Size / diameter:28.0mm
Height:7.62mm
Stem code: 351200 (tap 10)
Balance wheel code: 310055
Mainspring code: 201178
Notes:The same as cal. 8R46 but with a stopwatch hour hand.
PDF guides: Technical guide for 8R48A & 8R49A
Related movements: 8R46 8R49