Vintage Seiko 5 Automatic Mechanical Movement service

Today I started the service on the smallest Automatic Mechanical Movement I have so far worked on.

This watch is a Vintage Seiko 5 Automatic fitted with the Seiko 4206/B Mechanical Automatic Movement.

I found the Parts and Technical sheets for the movement online, so I have something to work to when servicing the movement.

I will have to use my strongest Loupe when working on this caliber of watch.

Fingers crossed I don’t lose or break a part!

Ellesse 03-0033 Watch, New ETA 955.412 Quartz Movement fitted, Relume Hour and Minute hands.

Ellesse Watch service

Photograph Album

Stripped down the ETA 955.412 Quartz Movement

See Photograph album “MovementETA 955 412 Quartz watch movement. (E3A) deconstruction”

Found the fault in the movement, the (Rotor, step motor) Bottom pivot broken.

So a new movement purchased and fitted to watch.

 Also needed to relume the Hour and Minute hands.

Job Completed.