The Seiko 1100-4020 is a watch model based on the 1100 movement.
Parts List
| SA2N17GN00 | crystal |
| 45D01NA1 | crown |
| 45D01NS1 | crown |
Caliber 1100








The Seiko 1100-4020 is a watch model based on the 1100 movement.
| SA2N17GN00 | crystal |
| 45D01NA1 | crown |
| 45D01NS1 | crown |







