Transfering the automatic weight bearing from a 6119 to a 6105

[anilv]

Hi guys,

I just fitted a new dial to the Seiko 6105 diver I re-surrected a while back, see this post below.

While it was on my desk, there was one more thing which I wanted to address.

In the pic below you can see the rusted out original 6105 movement.

The 6119 is basically a drop in replacement for the 6105. Looking at the backside of the movement you can see that the layout of the wheels and bridges are identical. The first thing you would notice is there are more jewels in the 6119 (21) compared to the 6105 (17) which is a good thing in my opinion. A not so visible difference is that on the 6105 the bridge and balance cock are chamfered at the edges compared to the squared-off edges you can see on the 6119. The 6119 is the cased movement in the picture below. The 6105 is on the right.

While the 6119 size matches the 6105, in this instance you will loose the quickset for the day function as the 6119 quicksets by pushing in the crown. For this to work in the 6105 diver you would need a gap between the crown and case. I preferred not to do so. This is another reason the 6106 will not work as the quickset for day works the same as the 6119.

The three small rings at the top of the picture are parts of the bearing assembly from the 6105.

Here we see the 6119 movement with its correct autowind bridge.

And here we see the 6119 bridge sans bearing.. The bearing pushes in from behind and is staked to hold it in place.

Here the bearing has been fitted into the 6105 bridge and the autowind assembly has been installed back  onto the 6119 movement. The balance cock seems to be a bit different colour but is actually identical to the naked eye.

The rotor is reinstalled, now all thats needed is to case it up.

So that's the final chapter on the resurrection of the 6105 diver.

My intent in doing this was to retain as much of the original watch as possible. I realise that what I have done here is sort of like a ' how to counterfeit a Seiko 6105 diver' type of post but to balance this I hope it also raises awareness for those looking to buy a similar watch that a lot of things are possible and to be cautious when buying these watches.

I don't plan to sell this watch as this is probably the closest I can get to a 6105 diver within a price thats acceptable to me, but in the event that I do I will direct the buyer to this site to see for himself what has been done.

Cheers

Anilv

 

Edited April 14, 2017 by anilv