Vintage SEIKO "Time Sonar" 7015A-6010S, ca. 1978 (from Tim)

The secret of the "Dentist's Drill" ...
is that one of the previous owners had sheared off a brass head of one of the spring bars. I only found this out after having serviced the watch. I thought putting on this vintage SEIKO bracelet 7005-8022W should be easy. Well, I had to improvise: I used my stem holder fool and a fine steel drill and got rid of the brass stuck in the lug hole fairly easy. About 10 minutes of careful manual drilling and the brass pin stuck in the hole was finally out.