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Thank you, that seems like a smart idea. The watch looks great :applouse:

That looks excellent!

I'm curious how people account for thermal expansion. Sinn have that membrane thing behind the caseback (Thanks Crusader...)

If your watch doesn't have this, is it at...

Thanks yes I think Flourinert is one I saw mentioned too, though I am not sure it is available in Japan. According to one of the linked posts, Sinn used to use silicon oil but changed to flourinert...

That's a very useful post. The same movement as mine too. So it must be possible. Reading it carefully, I think the main difference between how he approached it and my own efforts, is that he appears...

Oil viscosity seems the most likely culprit. For a digital it makes no difference. Or an analogue without a seconds hand, I suspect: the hour and minute hands moving so slowly so as not to meet much...

Encouraged by the Casio G shock results I thought I'd have a go at hydro-modding myself.

In the sonorous words of farming savant and motoring philosopher Mr J Clarkson, how hard could it be?
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