Big Pilot (fake PR) unassembly - Many pics

[GenTLe]

This week I wanted to fix the fake PR hand of my BP (putting it at full 7 days indication) and, in the meantime to service the movement inside.

 

Since there's no "Lubrification / assembly chart" for this movement, I took a lot of pics during the disassemble phase, in order to then reassemble it in the correct way.

 

I am sharing here those pics so that, if someone wants to do something similar, he can be helped and use these as references.

 

First a couple of pics of the fake PR hand fix. It is glued with some gummy glue directly on the dial. There is no fake pinion but just a hand holder.

I removed all the residue of glue (still present in the 1st pic), re-positioned it and reglued it from the back of the dial with a bit of cyanoacrylate glue.

 

Fixed hand (dial not yet cleaned):

 

Final result (the dust on the face is OUTSIDE the glass):

 

 

 

Now let's go to the movement.

These are, in chronological order, all the pics of the movement dismantle.

 

Movement still cased, only removed part is the rotor:

 

Autowind bridge (you really need to take care about the micro gear there, it is easy to lose it!):

 

Movement mounted with no autowind bridge:

 

Upper face (fully assembled):

 

Dismount phases of the upper part:

 

Detail of the date wheel setting bridge:

 

Lower part (take care of those 3 friction rings between the plate and the gears!!):

 

Details of the barrel:

 

Back to the movement:

 

Keyless (take care to the micro washer below the setting lever jumper! Visible in the 1st pic here below)

 

Comments on the movement: very solid one in my opinion. The finishing is quite rough and the design is much less "clean" than an ETA 2824 with many more little parts.

The way the date changer wheel is done makes it not breakable if the date is changed when it's already engaged.

 

Cheers,

GenTLe

Edited June 17, 2016 by GenTLe