Wednesday, 22 February 2012

Seiko 6309 Assembly Videos

This is my first attempt at filming an assembly, which was surprisingly difficult. I've got a 10mp 'tough' camera on a macro setting, held in place by a frame made from a coat hanger... Combined with a very close light source, there was no room for my head and my loupe... so I've had to assemble this movement from afar (5-6 inches) with no magnification (I also edited out the major mistakes & the sound).


  1. Hello,
    Thanks for your videos.
    I restore a 6309 for the first time.

    I see on the seiko 6309 tech sheet the type of oil.
    - Moebius A
    - Moebius V
    - Seiko watch oil S-2
    - Seiko watch oil S-6

    What's the equivalent with the oils of market?

    Do you lubricate the mainspring? (with 8200 or 8300?)


    1. Thanks for the question,

      To be honest, I'm really not sure about the A/V & S2/6 oils listed on the Seiko 6309a crib sheet. I tried asking that question a couple of years ago and gave up. Nowadays I've generally got four different greases/oils/lubes that I'll use for the 6309 -

      9010, 9415 - essential
      9200, 8217 - barrel

      I've worked on 6309s on a regular basis for 3 years now, and I've never consistently oiled the mainsprings, although for the last year or so I have begun to - probably because my restoration work on 19th C and early 20th C American watch has necessitated this. For the 6309 mainsprings I've previously used cigy papers with 9200 whilst winding the spring. If you're like me with massive clumsy hands, then this will be a challenge....