Exhibition Case Back

Seiko Open Heart Skeleton with Exhibition Case Back

JEWELS: 24
RESERVE: 40, 41 hours
FREQUENCY: 21,600 A/h
WINDING: Automatic, Bi-Directional Automatic Winding, Central Rotor Automatic Winding
COMPLICATIONS: Hacking Seconds, Hand Winding
HANDS: Central Hour Hand, Central Minute Hand, Central Seconds Hand, Open Heart at 9:00

Rare JDM version with Heart design