The Seiko 5Y30-5100 is a watch model based on the 5Y30 movement.
Parts List
| SAAW22JM01 | crystal |
| SAAW22JM | crystal |
| 35MA8NA1 | crown |
| 0A2500N01 | case back gasket - rotating bezel gasket |
| 0A2500N | case back gasket |
| B1585G | band - metal band |
| B1585G-BK5G | clasp - clasp |
| 0351670 | others - winding stem |
| 5Y305100 | others - case back |
| 5Y30510075 | others - case |
| 5Y305270XB13 | others - dial |
| 5Y305270XG13 | others - dial |
| 5Y309 | others - machine code |
| 82801780 | others - case ring |
| A160BS | others - push pin |
| 09T32DAM | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 09T32DAH | others - hour hand |