The Seiko 1220-5310 is a watch model based on the 1220 movement.
Parts List
| SAFN61SN01 | crystal - crystal |
| 30NB3NA1 | crown - crown |
| 0G2450B01 | case back gasket - case back gasket |
| YB10A | band - band |
| 07R13DGH | others - hour hand |
| 07R13DGM | others - minute hand |
| 1CH047A1BNG | others - hour hand |
| 2CH070A1BDG | others - minute hand |
| 0351117 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81180229 | others - bracelet fixing pipe |
| 12205310EA | others - case |
| 81182699 | others - bracelet fixing pipe |
| 82801290 | others - case ring |
| 81609399 | others - bracelet fixing pin |
| 12200530XS14 | others - dial |
| 122010 | others - machine code |
| DZ0040B01 | others - crown and stem gasket |
Caliber 1220
