The Seiko 2320-0021 is a watch model based on the 2320 movement.
Parts List
190N20GN00 | crystal - crystal (inorganic) |
30M06NA1 | crown - crown |
30M06NS1 | crown - crown |
0G0055B01 | case back gasket - crown and stem gasket |
0H1720B01 | case back gasket - case back gasket |