Advice on retrofit of clasp

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vadimo

·Aug 8, 2021

I just got new 3 position micro adjustable clasp for previous generation Seamaster 300.

I am split between either do it myself and get the tools or got to a jeweller and pay them to do.

Any advice?

 

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dsio

·Aug 8, 2021·Ash @ ΩF

vadimo

I just got new 3 position micro adjustable clasp for previous generation Seamaster 300.

I am split between either do it myself and get the tools or got to a jeweller and pay them to do.

Any advice?

I would get a watchmaker to do it not a jeweler, the majority of people you find at jewelry stores aren’t really any good at all when it comes to working with watches without causing scratches, a watchmaker has the right tool for the job and doesn’t have to try to make do

 

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vadimo

·Aug 8, 2021

i think maybe i will do it myself as i cant find anyone decent in surrey from google to do it

Necessary tools?

Screwdriver - Bergeon Watchmakers Swiss Screwdriver 1.20mm 30080-F with spare blades - HS1412 | eBay
Locktie?
Holding block? - Bergeon 6744-P1 Watch Bracelet Holding Block - HB6744-P1 : Amazon.co.uk: Watches

 

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Darlinboy

·Aug 8, 2021·Pratts! Will I B******S!!!

vadimo

i think maybe i will do it myself as i cant find anyone decent in surrey from google to do it

Necessary tools?

Screwdriver - Bergeon Watchmakers Swiss Screwdriver 1.20mm 30080-F with spare blades - HS1412 | eBay
Locktie?
Holding block? - Bergeon 6744-P1 Watch Bracelet Holding Block - HB6744-P1 : Amazon.co.uk: Watches

It's not hard, just take your time, be sure the screwdriver is sized for the slots, and don't over-tighten. Some low hold locktite is a good idea.

The screwdriver you have listed there should be fine, but check the size vs. screws. I would always recommend a high-quality screwdriver - the cheap ones are generally crap.

IMO, don't waste your money on the Bergeon holding block, an inexpensive one will work just as well for your purposes and cost 2/3 less. Easy to find on amazon, ebay, or cheapest of all, AliExpress.

 

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dstfno

·Aug 8, 2021

I’m all for DIY stuff but as far as watches go I don’t do anything myself other than changing straps/bracelets.

I would have the clasp installed by a professional watchmaker, those little screws are nasty!

 

G

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gpstar

·Aug 8, 2021

It is super easy to do, I did it for my 2500D PO to put a 6 position adjustable clasp on. Just get a simple holding block like mentioned above.

 

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SkunkPrince

·Aug 8, 2021

I'm pretty sure you need the 1.5mm screwdriver... I've done one of these and my watchmaker did the other. On the 1610 bracelet, he did something I didn't expect... he left the tube in and drove the new pin through the tube for a better fit.

So in that respect, you might consider having the watchmaker do it, if the bracelet is not fitted with screws to begin with.

 

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vadimo

·Aug 8, 2021

Is there a way I can find our exact screwdriver size? Thats my biggest worry damaging the screw with wrong one.

Noted on the holding block saving.

 

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SkunkPrince

·Aug 8, 2021

I's say "measure it", but that assumes you have the tools to measure it, and if you're buying the tools to do the work, you likely don't have the tools to measure. Maybe it would be better at least this time to ask the watchmaker to do it.

 

M

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Mazza

·Aug 13, 2021

I’ve added a half link on my SMPc using this - https://www.amazon.co.uk/gp/product/B0001P18K0/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
Fitted perfectly and Wera tools are very good.

 

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vadimo

·Aug 13, 2021

M Mazza

I’ve added a half link on my SMPc using this - https://www.amazon.co.uk/gp/product/B0001P18K0/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1
Fitted perfectly and Wera tools are very good.

Yep bought from this range too but 1.5mm, a bit of loose fit so waiting on the 1.88mm to try, thanks for confirming it fits

 

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vadimo

·Aug 16, 2021

In the end i decided to DIY and pleased to say it is done painlessly under 20 mins

I needed

Loctite 222 = £7
Wera 2035 Kraftform Micro 0.30/1.8/60 05118004001 = £4 (perfect fit)
Insulation Polyimide Tape - £4
Holding block and pin pusher = £4 (Cheap and nasty ebay Watch Repair Tool Kit with other rubbish)

Edited: Aug 17, 2021

 

W

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wristrolled

·Aug 16, 2021

I personally wouldn't bother with the loctite but that's just me. I adjust way too much and too often to throw loctite on my screws.

 

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time flies

·Aug 16, 2021

W wristrolled

I personally wouldn't bother with the loctite but that's just me. I adjust way too much and too often to throw loctite on my screws.

You mess with the clasp when you adjust for size?

have fun
kfw

 

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Pazzo

·Aug 16, 2021

W wristrolled

I personally wouldn't bother with the loctite but that's just me. I adjust way too much and too often to throw loctite on my screws.

The OP's Loctite keeps the screws in place and easy enough to unscrew without the need of heat.
I personally recommend using it.

 

W

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wristrolled

·Aug 17, 2021

I've just never had a screw fall out randomly, obviously the OP's choice though.

 

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vadimo

·Aug 17, 2021

When I unscrewed factory clasp, there was crack like breaking seal. So Omega must do it.

I actually done it thanks to this tutorial https://theenglishwatch.com/how-to-size-an-omega-watch-bracelet/

I also note that it should be left ideally 24 hours for Loctite to set in