The Seiko 2C20-5739 is a watch model based on the 2C20 movement.
Parts List
| SAEN17AN00 | crystal |
| 32N09NA1 | crown |
| DH0100B01 | case back gasket - crown and stem gasket (4h) |
| 0F135NA11 | case back gasket |
| Z5107G | band - metal band |
| Z5107G-LKG | band - link |
| Z5107G-PB1 | clasp - parts for buckle/clasp |
| Z5107G-BK4G | clasp - clasp |
| 1CA032A3BNG | others - hour hand |
| 1DA032A3BNG | others - hour hand |
| 2CA047A3BDG | others - minute hand |
| 81180229 | others - bracelet fixing pipe |
| 81604259 | others - bracelet fixing pin |
| 81603979 | others - bracelet fixing pin |
| 2C2010 | others - machine code |
| 2C201500XG14 | others - dial |
| 2C20573925 | others - case |
| 82713950 | others - case ring |
| Z5107G-ES | others - eyelet screw |
| 05R17DGM | others - minute hand |
Caliber 2C20
