MITKA

Service: Citizen 150m Diver 68-5372

P1160216 (copy)A client has sent in his Citizen Diver for a service. It’s not keeping time and looks fairly beaten up.
P1160218

Movement looks to be in decent condition.

P1160220 (copy)

I start by taking out the oscillating weight and the auto winder mechanism.

P1160221

Dial and hands have some patina, but overall pretty good condition.

P1160222 (copy)

The date/setting/winding mechanism.

P1160225 (copy)

Unlike many Seiko movements, the Citizens can be wound manually. 

P1160230

Here you can see the gear train layout.

P1160231 (copy)

Plenty of dirt! 

P1160394

I have cleaned the movement and it’s ready to be put back together.

P1160396

I fit the Para shock (shock protection jewels) and see that the balance moves freely.

P1160395

Mainspring goes back into the barrel.

P1160398

Gear train coming back in place.

P1160399

Gear train back in place.

P1160400

I start fitting the winding/setting mechanism.

P1160401

I now fit the date mechanism.

P1160402

Date disk back in place. Note it also features a quick date mechanism.

P1160403

Balance goes back in place and the movement is ticking like it should.

P1160408

That looks pretty decent! 

P1160404 Dial and hands back in place.
P1160232 (copy)

Case is taken apart and given a good clean and a new crystal.

P1160405

Movement goes back into it’s case.

Citizen calibre 7470

Great movement that was ahead of it’s time!

Getting a good photo is almost impossible, but it really turned out great with a new crystal!
%d bloggers like this: