Everything from the tiger-eyes dial too the beefy case tells you this classic is from the 70’s. I bought this watch just before departing to the. I’ve previously posted my newly acquired Certina Blue Ribbon, which looks nice and works well. I’ve also looked at Martin Lovaszs’ schedule. Data: Certina cal: 27/28 jewels, center second, automatic wind, date. Size: 11,5”’ 25,60 mm. H: = 5,40 mm. N: = Power reserve: 46 h. Versions: .

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I bought this watch just before departing to the watchmaker school in Denmark. The watch was supposed to have been newly serviced. The movement looks to be in excellent shape.

Service: Certina blue ribbon calibre | Watch Guy

I start by removing the rotor. This ring was meant as extra sock protection. Dial is in really great shape. I remove the winding mechanism. Here you can see the auto winder gears. There is some serious dirt on that reduction wheel! I doubt this watch had just been serviced when I bought it. Not that it matters that much too me; I remove the balance. I remove the train bridge.

Service: Certina DS 2 calibre: | Watch Guy

A good upgrade from the calibre: The old mainspring looks okay. Everything is clean and ready for reassembling. Mainspring is back in the barrel looking pretty fresh! I put the cap jewel back in the balance and test that it swings freely.


The barrel bridge is back in place. I make sure everything moves freely before putting the pallet back in place. Ratchet driving wheel, ratchet wheel and crown wheel back in place. The Auto reversing wheel has an inner pinion. It is important certins goes back the right way.

Self winding mechanism back on the movement. Winding, setting ecrtina date mechanism back on the bottom plate. I have polished the hands ever so lightly and applied new certin compound Hands back on the dial.

I start of by masking the parts so that I can preserve in this case make new sharp edges. This is one funky beast!

Side shot of the case. I do think the extra case work was worh it; The famous turtle case back. If you want to read up on the history of the watch, here is a good article.

Service: Certina DS 2 calibre: 25-651

How do you get te rubber ring back in place, it is such a tight fit, I am afraid to damage it. Do you have a clever trick for this? Hi, Quick question, I notice that turning the crown forward I can hear clicks, is it also winding the watch? My dial is the same colour as yours but has 5 tiny bubles under the finish with what appear like small streak lines top and bottom?

Is this patina starting.

Urmagerskolen i Ringsted is cool… when was you at the school? It looks like the power flow passes through the crown wheel on its way from the rotor to the barrel. Does 52-651 mean the crown turns by itself during automatic winding? I do love those 25-615 I have a similar one on a Certina hummer from probably the same time. I polish the hands by pressing it down on a cloth with polish paste and very gently rub in one direction. Yes there is some Seiko diver hands; Enjoy the sun in Brazil!


Certina 25-651 Part 2556 Calendar Driving Wheel for Watch Repair – 1 per Order

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Certina DS 2 calibre: Hi Ben In priceable it could turn, but most of the time it turns and clicks on the ratchet wheel. I check this website daily! Thank you very much. And also I can see some Seiko diver hands… Looking forward for the completion! You could say double shocked! Leave a Reply Cancel reply Your email address will not be published.