The Seiko 1N00-6C90 is a watch model based on the 1N00 movement.
Parts List
| ES0A40JZ0A | crystal |
| ES0A40JZ | crystal |
| 35M1TNA1 | crown |
| 0E160NA1S | case back gasket - case back gasket |
| 0E160NA1 | case back gasket |
| 4174LZ-LKG | band - link |
| 4174LZ | band |
| 4174LZ-PB1 | clasp - parts for buckle/clasp |
| 4174LZ-BK4S | clasp - clasp |
| 2CH050A0BNG | others - minute hand |
| 1CH032A0BNG | others - hour hand |
| 0351807 | others - winding stem |
| 81606439 | others - bracelet fixing pin |
| 81190055 | others - bracelet fixing pipe |
| 82835420 | others - case ring |
| 1N004E48XS24 | others - dial |
| 1N006C90 | others - case back |
| 1N006C902HZ | others - case |
| 1N009 | others - machine code |
| DZ0041B01 | others - crown and stem gasket |
| 04Y17NGH | others - hour hand |
Caliber 1N00
