The great thing about the 9F is that battery changes are easy and the movement is sealed. A $15 case opening kit, $5 gasket lube, a $3 battery and a $150 pressure tester gets you there. After you buy all of that, then it’s just a few bucks for the next battery swap (I have 2 9Fs.)
Takes all of 5 minutes to do the whole thing.
|