The Seiko Y102-5099 is a watch model based on the Y102 movement.
Parts List
| RE2N78GM01 | crystal |
| 35M98NF1 | crown |
| 0G0055B01 | case back gasket - crown and stem gasket |
| 0A2700B0A | case back gasket |
| 0A2700B01 | case back gasket - gasket |
| 7BS9ZY | band - leather band |
| 82711880 | others - case ring |
| A180BS | others - push pin |
| Y1025099EJ | others - case |
| Y1025100XG18 | others - dial |
| 0354765 | others - winding stem |
| 0801576 | others - date dial |
| 13SC04A2 | others - second hand |
| 08C82AGM | others - minute hand |
| 08C88AGH | others - hour hand |