Servicing a modified 2264.50

ErichKeane · May 10, 2026

ErichPryde
Opinions are divided on this, facts are not. Does your watch pass a pressure test?

Secondarily, How cold are we talking? Cold can impact a quartz watch function. I wouldn't expect this to be the case here, but if your watch is properly sealed I would expect lower temperature to be a potential culprit. But if it is, you're back to replacing the movement.

I would think the quartz mechanism probably has to get WAY colder than the ocean to be problematic for the electronics.

That said, I also suspect the cold, I could imagine the oils (perhaps older?) could increase in viscosity enough to miss ticks.

geza · May 10, 2026

The previous repair person told me that it passed a pressure test. I frequently scuba down to ~100 ft in 50 F water and the watch handles it without issues. Swims are in 55-65 F water, also with zero issues. I only register the lost time after the hot shower (only after the swim, no hot showers after scuba). Of course this does not mean that the shower is responsible, it could very well be something else. But the hot shower hypothesis is something I can test very easily at home.

502 to right · May 10, 2026

I don't understand why people shower with watches. Not from a water intrusion standpoint but from a comfort standpoint. To me, it makes for an uncomfortable experience. It's the same reason I don't sleep with a watch on.

Servicing a modified 2264.50

ErichKeane

geza

502 to right

Similar threads

2264.50 vs 2254.60, Head or Heart?

A modified 2915-2

Any Value in a modified speedmaster redial?

Servicing a grey market watch

Modified Speedmaster Reduced Ref. 3834.70.36 with Box and Paper

Servicing a "modified" Speedmaster...?