Thursday, August 13, 2020

the guts of the Hamilton...

Looks to me like the fast running problem with this wristwatch (almost 6 minutes per hour) is a hairspring that is sticking to itself because of too much oil.  Going to try to clean it tomorrow.  The balance wheel and hairspring is the most delicate part of a mechanical watch.  Keep your fingers crossed... 93,104,77,0,B  

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7 comments:

intermittent marathonian 00 said...

What solvent are you using for a problem such a problem ?

August 13, 2020 at 6:26 PM
intermittent marathonian 00 said...

What solvent are you using for such a problem ? Thanks.

August 13, 2020 at 6:27 PM
Penelope said...

Fingers crossed. Don't flinch.

August 13, 2020 at 6:42 PM
John Wells said...

I use good ol' lighter fluid for a solvent.

August 13, 2020 at 6:50 PM
intermittent marathonian 00 said...

Thanks for the info and sorry for the redundancy.

I was just wodering if you were using MEK, ether, or ethyl chloride and then relubricating.

August 13, 2020 at 10:43 PM
B.B. Sutton said...

So will you have to completely disassemble the watch or just apply the naphtha to cut the oil?

August 14, 2020 at 9:49 AM
John Wells said...

I don't have the expertise to completely disassemble the watch...I just removed the balance wheel and soaked it in the naphtha. After a couple of tries I finally got the spring to cooperate and so far the watch is running right on time after 5 hours. I cleaned up the dial a bit and now I am just waiting for the new crystal to arrive.

August 14, 2020 at 4:05 PM

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