Back in the day when mechanical escapement pocket watches, and wrist watches were state of the art, the jeweler would adjust the watch to run at a normal rate, and give them a daily wind. Everything looked nice in the display case.
When a customer bought a watch, the jeweler would set the watch to his shop clock, and instruct the customer to wear, and wind the watch normally for two weeks, but do not set it. At the end of the two weeks, bring the watch back to the shop for a check up... When the watch came back, the jeweler would calculate the number of days the watch had been worn, note the difference from his shop clock, and calculate the daily rate of the watch. He would then set his timing machine for the the inverse of that rate, and set the watch to match. Now, when the customer wore his watch, the watch would seem to always be right on because it was adjusted for a rate that compensated for the customer's patterns of wearing the watch...his "personal error". This trick had an added advantage because the customer got to see how so-so his brand new watch behaved during those two weeks, and got to be dazzled by his jeweler's rare ability to make the new watch perform so much better than the factory could! If this was normal back at the turn of the 20th century, why wouldn't Casio, and others at least do as well? Especially now that all electronic watches have a microprocessor built in... complete with temperature sensing diodes, battery monitors, and other nifty gadgets. -Chuck Harris Bryan _ wrote:
But wouldn't normal watch wear just balance itself over time, one wears their watch for say 12 hours and the rest it sits on a counter at a much colder temperature. So wonder if Casio would actually go to such lengths to compensate. Maybe, interesting though. -=Bryan=-
_______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.