What a great watch! It has a super-fine piezo-electronic motor to move the date wheel! Very cool. Its quite a show to go through the date/leap-year check, and then observe the watch catch back up to the correct time afterwards. Battery lasts ~five years. I downloaded the manual (your model number on watch back) after a short search online (beware of trojans/viruses). Setting after a battery replacement requires shorting certain pins inside the watch to set the leap-year, and date. The back unscrews, and may require the special watch-wrench, available online. I unscrewed mine VERY CAREFULLY with fine pliers, confirming that I was doing this in a clean, dust-free location. The instructions are quite specific, must be followed carefully to set up correctly. Have a fine wire jumper to set the leap-year. I learned this because I did not want to pay an inexperienced jeweler $100 to replace the battery.
Answers & Comments
What a great watch! It has a super-fine piezo-electronic motor to move the date wheel! Very cool. Its quite a show to go through the date/leap-year check, and then observe the watch catch back up to the correct time afterwards. Battery lasts ~five years.
I downloaded the manual (your model number on watch back) after a short search online (beware of trojans/viruses).
Setting after a battery replacement requires shorting certain pins inside the watch to set the leap-year, and date. The back unscrews, and may require the special watch-wrench, available online. I unscrewed mine VERY CAREFULLY with fine pliers, confirming that I was doing this in a clean, dust-free location. The instructions are quite specific, must be followed carefully to set up correctly. Have a fine wire jumper to set the leap-year. I learned this because I did not want to pay an inexperienced jeweler $100 to replace the battery.