Seiko 6640-6020 Watch Guide

The Seiko 6640-6020 is a watch model based on the 6640 movement.

Parts List

55M04EScrown
55M04EGcrown
DJ0160Bcase back gasket
DA2580Bcase back gasket

Other models with the same movement

6640-6000
6640-7970
6640-8000
6640-8010