I have a Seiko Arcadia Perpetual . . . same movement. Also have Seiko technical PDF on the movement which includes detailed battery replacement instructions. The printing inside the watch back is slightly mis-leading (aside from the "snort" misspelling). You're not shorting the battery out in step 2, but connecting its + terminal to a specific point in the movement circuitry.

I had my watchmaker do the battery replacement (he works in a Seiko AD . . . among a few other very high end brands) after reading the full directions in the PDF. It's definitely more involved than normal quartz battery replacement and you must be very, very careful not to damage the coil in the process. There's also an insulator under the battery cell that must be positioned correctly. For me, it was well worth the cost (about 2X normal quartz battery replacement), which was still pretty low . . . well under the cost of a replacement perpetual movement had I bungled the job. The instructions are exactly correct that you don't have much time to get the old one out and new one in . . . otherwise you must reset the perpetual with day, month and year (in the 4-year Leap Year cycle) which is a real PITA to get right.

If you don't have a copy of the technical PDF for the movement, PM me and I'll send you a copy.

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John



Edited 1 time(s). Last edit at 05/25/2009 04:18PM by John Lind.