Seiko Calibre 62 movement family

Designed by Suwa Seikosha. Some calibres also manufactured by Daini Seikosha. Developed from thin Calibre 3140 Liner manual-winding movement (Suwa Seikosha, introduced in 1960).

Manual-winding:

6220: 6220M, 6220A: Time-only, 3 hands: Hours, minutes, centre sweep seconds

6222: 622: Time and date, 3 hands: Hours, minutes, centre sweep seconds, date window.

Automatic-winding:

6201: 6210A: 17 jewels, 20 jewels, 21 jewels, 30 jewels: Time-only, 3 hands: Hours, minutes, centre sweep seconds.

6205: 6205A, 6205B

6217: 6217A: 17 jewels: Time and date: Hours, minutes, centre sweep seconds, date window.

400: 33 jewels: Time, date, and day, 3 hands: Hours, minutes, centre sweep seconds, date window, day window. Developed into 6206 and 6218.

6206: 6206A, 6206B: 26 jewels. Developed from 33 jewel Calibre 400.

395/6219A: 39 jewels: Time and date, 3 hands: Hours, minutes, centre sweep seconds, date window.

6218: 6218A, 6218B, 6218C: 35 jewels: Time, date, and day, 3 hands: Hours, minutes, centre sweep seconds, date window, day window.

6215: 6215A: 35 jewels: Time and date, 3 hands: Hours, minutes, centre sweep seconds, date window. Beat rate: 19,800 vph. Only used in 300m Professional Divers' watch.

6216: 6216A: 39 jewels: Time, date, and day, 3 hands: Hours, minutes, centre sweep seconds, date window, day window. Beat rate: 19,800 vph.

6245: 6245A: 35 jewels: Time and date, 3 hands: Hours, minutes, centre sweep seconds, date window. Beat rate: 19,800 vph. Chronometer standard and Grand Seiko Standard versions.

6246: 6246A: 39 jewels: Time, date, and day, 3 hands: Hours, minutes, centre sweep seconds, date window, day window. Beat rate: 19,800 vph. Chronometer standard and Grand Seiko Standard versions.

Detailed table: