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Quartz watches all should run within a second fast or slow within 24 hours. This should be expected.
Quartz watches all should run within a second fast or slow within 24 hours. This should be expected.

Quartz watches all should run within a second fast or slow within 24 hours. This should be expected.
bmpennington you are missing the point. The 8912 is a mechanical movement and so are the other 89XX movements. The point of this thread is that the 89XX series mechanical movements are so accurate they near Quartz level accuracy which is simply amazing.
I gonna let you get away with it this time but if you ever call my SeaMaster 300 Heritage a Quartz watch again there is gonna be problems.
I purchased my Globemaster with cal 8900 in December. When I first got it, it ran about +3-4 per day. It's within specs but I was still a bit disappointed.... now 8 months later, it runs about +1s per week! Idk if the movement needed some time work itself out or what. Impressive indeed.
Yes. Do you take it off at night and rest it in a particular position?
Yes, I take it off at night and I leave the watch dial up.
Just wanted to say for anyone interested that I had the service center in Petach Tikva, Israel change a date wheel in my Aqua Terra a few months back in April or May and ever since then I've got .24 fast to 0 accuracy. Amazing. Thank God.