The Seiko 1F20-5160 is a watch model based on the 1F20 movement.
Parts List
| K02A13SN01 | crystal - crystal (sapphire) |
| 25M69DX1 | crown |
| 0H1800B01 | case back gasket - case back gasket |
| W078AE | band - band |
| 1CC040AABNS | others - hour hand |
| 2CC055AABDS | others - minute hand |
| 0351807 | others - winding stem |
| DZ0040B01 | others - crown and stem gasket |
| 1F2051601EA | others - case |
| 82873610 | others - case ring |
| 1F200410XA13 | others - dial |
| 1F205 | others - machine code |
Caliber 1F20
