Jump to content

Seiko 7009


Recommended Posts

Well, not knowing how to let down tension on the mainspring before I disassembled the movement produced a bit of an explosion.

But, the good news is that I didn't lose any parts and I now hope that the mainspring isn't broken - since it wasn't before, and I know the correct way of letting it unwind. I also know it delivers power up to the pallet lever so I'm thinking there is a problem with the balance.

Anyway, I'll clean it and see what happens. 

Dave

 

 

Link to comment
Share on other sites

I'll bet that was an exciting few seconds. I'm working on a 7019 right now, very similar to your 7009. The main differences are in the calendar side and a few extra jewels. I'm taking a break from it this evening because I have to make a mainspring winder. I have a nice one that I made for the Seiko 6xxx series, but the 7xxx barrel is a bit smaller so it won't work. They also wind in different directions relative to the barrel opening so I need to make an intermediate ring to press the spring into, then from there into the barrel.

If you haven't already, I suggest you watch Mark's recent video on servicing the 7s26. It's very informative as usual, and most of it will apply to the 7009. I think he's posting part 2 on Friday.

Steve

Link to comment
Share on other sites

Yes, I saw Mark's video right after I had exciting few seconds. It's very good and it would have helped a lot; however, I should know by now that just because a watch doesn't work doesn't mean it's now wound.

Interesting that you make your own winders.

Dave

Link to comment
Share on other sites



×
×
  • Create New...