The Seiko V657-8120 is a watch model based on the V657 movement.
Parts List
| 310P04LN02 | crystal - crystal |
| 1E45A2SNW1 | crown - crown |
| 1E45A2SNG1 | crown - crown |
| FE318BAD2 | case back gasket - case back gasket |
| 86620570 | crystal gasket - plastic gasket for crystal |
| 86620575 | crystal gasket - plastic gasket for crystal |
| 0G345BA11 | bezel gasket - rotating bezel gasket |
| A35A07SMG0 | pusher - button |
| A35A07SMS0 | pusher - button |
| 4997AG | band - band |
| 4997JG | band - band |
| LOCAL | band - band |
| 4997AG-LK3 | band - link |
| 4997JG-LK3 | band - link |
| 4997AG-PB1 | clasp - parts for buckle |
| 4997AG-BKD | clasp - buckle |
| 4997JG-BKD | clasp - buckle |
| 4997JG-PB1 | clasp - parts for buckle |
| 2BB120FBBSB | others - minute hand |
| 2BB120FBBSG | others - minute hand |
| 2BB120FBBSS | others - minute hand |
| 3AX125F3ASV | others - second hand |
| 3BX037FBBAT | others - small hand(12h) |
| 1AX080F0BSB | others - hour hand |
| 1AX080F0BSS | others - hour hand |
| 1AX080F0BSG | others - hour hand |
| 3BX037FBBAB | others - sub hand |
| 3BX037FBBNS | others - sub hand |
| 3BX037FBBAR | others - small hand(12h) |
| 3BX037FBBNG | others - sub hand |
| 0878220 | others - date dial |
| 86015495 | others - rotating bezel |
| V657812061F | others - case |
| V657812098A | others - case |
| 86015491 | others - rotating bezel |
| 84313695 | others - dial ring |
| 84313696 | others - dial ring |
| 84313697 | others - dial ring |
| A200BS | others - push pin |
| V65720 | others - machine code |
| V6578160XB13 | others - dial |
| V6578160XS1Z | others - dial |
| V6578168XB13 | others - dial |
| V6578168XL13 | others - dial |
| V6578168XS1Z | others - dial |
| V6578168XS24 | others - dial |
| 81351639 | others - button spring |
| 83200273 | others - button spring clip |
| AD006BAD1 | others - crown and stem gasket |
| 86015499 | others - rotating bezel |
| V657812061A | others - case |
| 86015496 | others - rotating bezel |
| V6578120 | others - case back |
| V657812061B | others - case |
| V657812061C | others - case |
| V657812061D | others - case |
| 0A0150B0A | others - crown and stem gasket |
| 89995390 | others - pusher spacer |
| 3AX125F3ASG | others - second hand |
| 3AX125F3ASR | others - second hand |