Seiko 15A Lady Seiko - Parts List and Exploded Views

Parts list and exploded component views for the Seiko 15A Lady Seiko non-automatic wristwatch. This service manual documents the complete mechanical assembly of the 15A caliber, with case dimensions 19.80 x 9.60 mm and maximum height 3.50 mm operating at 19,800 vibrations per hour. The repair guide covers every component from the mainspring and barrel through the train wheel assembly (center wheel with pinion, third wheel, minute wheel, escape wheel), escapement mechanism (jeweled pallet fork, balance cock, roller table, balance staff), and regulation system. Also included are the crown wheel and winding stem assembly, clutch wheel, setting wheel, and all associated jewel settings—both Diashock upper and lower frames and Diafix hole jewels with their retaining springs. Detailed exploded views show the precise positioning and relationship of each part, making this parts list essential for anyone servicing or restoring this classic Lady Seiko caliber. The workshop manual format with component diagrams ensures correct identification and reassembly of every screw, jewel setting, and mechanical element.