The Seiko 5M63-0A20 is a watch model based on the 5M63 movement.
Parts List
| 270P04TNC3 | crystal - crystal |
| 270P04TN03 | crystal - crystal |
| 8K45E0SNG1 | crown - crown |
| FE298BAD2 | case back gasket - case back gasket |
| 86571500 | crystal gasket - crystal plastic gasket |
| 86178900 | bezel gasket - plastic gasket for bezel |
| A35A28SMG0A | pusher - button |
| 43R0CB-LKG | band - link |
| 43R0CB | band - band |
| 43R0LB | band - band |
| 43R0LB-LKG | band - link |
| 43R0CB-PB1 | clasp - parts for buckle |
| 43R0LB-PB1 | clasp - parts for buckle |
| 43R0LB-BK2S | clasp - buckle |
| 43R0CB-BK2S | clasp - buckle |
| 3AX130F0ASG | others - second hand |
| 1AB080AEBSG | others - hour hand |
| 2AB115AFBSG | others - minute hand |
| 1AB080AEBFG | others - hour hand |
| 2AB115AFBFG | others - minute hand |
| 3AX130F0AAG | others - second hand |
| 82289264 | others - bezel |
| 83200273 | others - button spring clip |
| 81351630 | others - button spring |
| AD006BAD1 | others - crown and stem gasket |
| 0351653 | others - winding stem |
| 5M630A207YA | others - case |
| 5M630A20 | others - case back |
| 5M630A207YX | others - case |
| 5M630A207YY | others - case |
| 5M630A207YZ | others - case |
| 0866780 | others - holding ring for dial |
| 0878675 | others - date dial |
| 43R0CB-EPG | others - endpiece |
| 5M630A20XS14 | others - dial |
| 5M630A28XS14 | others - dial |
| 5M630A38XS14 | others - dial |
| 5M632 | others - machine code |
| 84325903 | others - dial ring |
| 84325907 | others - dial ring |
| A190BS | others - push pin |
| 43R0LB-EPG | others - endpiece |
Caliber 5M63
