Service: Certina DS calibre 25-36

P1040603

This lovely pre-turtle back DS needs a service. The case back is screwed on super tight! 

P1040604

The best way to deal with a tight case back is to glue a nut on it. When it dries I use a spanner to open it. After I dissolve the glue in methylated spirit.

P1040605

Movement looks to be in excellent condition.

P1040894

No doubt the watch needs a service.

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The Patent Pending case back dates this watch between 1958 and May 1960.

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The dial and hands are in very good condition!

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Hands and dial removed and you can see the setting/winding mecanism

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Movement coming apart.

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Here you can see the gear train layout.

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Old mainspring.

P1040961

All the parts cleaned and ready to be put back together.

P1060120

I see that the balance moves freely after fitting the shock jewels.

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Here you can see the great train before fitting the train bridge and barrel bridge.

P1060122

I fit the winding/setting mechanism, Certina has a great movement finish.

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Almost back together.

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The balance is back in palace and the movement is ticking like it should.

P1060340

Watch performs very well.

P1060343

Movement back in the case looking great! The movement case ring is cushioned against the case using a thick rubber ring.

Certina DS

Great looking classic!

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I would wear this any day!

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