The Seiko 5Y66-0AK0 is a watch model based on the 5Y66 movement.
Parts List
| ES0AK8JB0B | crystal - crystal (inorganic) |
| ES0AK8JB0C | crystal - crystal (inorganic) |
| 8K50ZNSNGA | crown - crown (3h) |
| 8K50ZNSNNC | crown - crown (3h) |
| 0F300BAD2 | case back gasket - case back gasket |
| FK71NB | band - leather band |
| FK72KB | band - leather band |
| 3BE025F0BDG | others - small hand (9h) |
| 3BA120FABAK | others - second hand |
| 3BA120FABAM | others - second hand |
| 3BE025F0BDS | others - sub hand(8h) |
| 3BE035S0BDS | others - sub hand (10h) |
| 3BE035S0BDG | others - sub hand (10h) |
| 1BH085S0BNG | others - hour hand |
| 2BH120S0BNG | others - minute hand |
| 1BH085S0BNS | others - hour hand |
| 2BH120S0BNS | others - minute hand |
| 82844700 | others - case ring |
| 5Y660AK0 | others - case back |
| 5Y660AK001C | others - case |
| 5Y660AK002C | others - case |
| 5Y660AN4X91Z | others - dial |
| 5Y660AN4XB13 | others - dial |
| 5Y661 | others - machine code |
| 84382188 | others - dial ring(set) |
| 84382189 | others - dial ring(set) |
| S210CS | others - push pin |
| AD006BAD1 | others - crown and stem gasket |
| 0351892 | others - winding stem |