thx, tourneau quote me $435 for overhaul service by breitling usa which they say is necessary. i have 3 breitling and the b1 is barely used. i just wanna have the battery replaced, not the watch overhauled.Frustrating. i am trying to see if any local swiss watch repair could replace the battery. i know the watch works perfectly.
thx for the suggestion. love my b1 though, i use it only when travelling, especially overseas. i usually have long flight up to 22 hrs flight time with 2 short layover, love the multi function of B1, and the backlight ... just wonderful. i don't think i can sell it yet.
The informative videos that breitling ran on their web site showed the drop, press and twist jig and socket they use to demount case backs. An impress bit of kit and designed to cope with the torque required to budge what is in effect a ~40mm nut , ID at the thread!!. If I was approaching the same size nut on any other assembly I would have a spanner, with a good 12 inches of handle and more in most cases, to apply the required torque. Its no small task to do the same to a watch and preserve its finish. Exerting 40-60 ft lbs torque through a handle less then 1 inch long takes a whole lot of control and exacting pressure. It may be only a few threads deep but it amounts to a whole lot of contact surface area relative the size of the device.
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