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.

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Movement looks to be in decent condition.

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

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

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The date/setting/winding mechanism.

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

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Here you can see the gear train layout.

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Plenty of dirt! 

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

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

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Mainspring goes back into the barrel.

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Gear train coming back in place.

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Gear train back in place.

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I start fitting the winding/setting mechanism.

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I now fit the date mechanism.

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

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

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That looks pretty decent! 

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Dial and hands back in place.

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

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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!

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