The Seiko 7N89-6C20 is a watch model based on the 7N89 movement.
Parts List
| 230P08SN03 | crystal - crystal |
| 35M78NS1 | crown - crown |
| 35M78NA1 | crown |
| 0F220NA1S | case back gasket - case back gasket |
| OF220NA1S | case back gasket |
| 86578720 | crystal gasket - crystal plastic gasket |
| 4316LB | band - band |
| 4D97JZ | band - band |
| 4316KB | band - band |
| 4D98KZ | band - band |
| 4316KB-LKG | band - link |
| 4316LB-LKG | band - link |
| 4D99KZ | band - leather band |
| 4316JB | band |
| 4316KB-BK1G | clasp - buckle |
| 4316KB-PB1 | clasp - parts for buckle |
| 4316LB-BK1S | clasp - buckle |
| 4316LB-PB1 | clasp - parts for buckle |
| 2BB090L0BSG | others - minute hand |
| 2BF095L0BAC | others - minute hand |
| 1AF065L0BAC | others - hour hand |
| 1AB060L2BSG | others - hour hand |
| 1AB060L2BSS | others - hour hand |
| 0351892 | others - winding stem |
| 82834420 | others - case ring |
| 7N896C2061Z | others - case |
| 7N896C20 | others - case back |
| 7N896C2075Z | others - case |
| 7N896C20SAZ | others - case |
| 7N893 | others - machine code |
| 7N896E98XS19 | others - dial |
| 7N896F08XS19 | others - dial |
| 7N896F18XG14 | others - dial |
| 7N896F18XN14 | others - dial |
| 7N896F18XS13 | others - dial |
| 7N896F18XS24 | others - dial |
| 7N896F18XS33 | others - dial |
| A140BS | others - push pin |
| 0878605 | others - date dial |
| 0878607 | others - date dial |
| 2BB090L0BSS | others - minute hand |
| 0Z0060B01 | others - crown and stem gasket |
| 1AC065A1BAA | others - hour hand |
| 2BC095A1BAA | others - minute hand |