Tissot PowerMatic purchased five years ago.  Ran extremely well for those five years.  Sometimes I didn't wear it for four weeks, and it still functioned great when I got back. Recently I haven't gotten very good life, although I'm not sure how much it's been charged up.  If I wear it every day, it won't stop. When I put it aside for another watch, it either goes to low battery mode (sweeps every 4 seconds) or stops altogether after maybe 2 days. I've tried reading the mechanism model # from the case back window.  I think it says 205.111 (capacitor?), although I read that it was supposed to be the later 205.911 with a lithium button cell battery. It originally came with a tag on the band indicating a 100-day power reserve. Any suggestions?  Is the watch worth saving?  Perhaps just needs a new cap or battery?  Personally one of the reasons I got it was because I was hoping that I would never have to replace the power cell (whatever it is).

Tissot PowerMatic purchased five years ago.  Ran extremely well for those five years.  Sometimes I didn't wear it for four weeks, and it still functioned great when I got back. Recently I haven't gotten very good life, although I'm not sure how much it's been charged up.  If I wear it every day, it won't stop. When I put it aside for another watch, it either goes to low battery mode (sweeps every 4 seconds) or stops altogether after maybe 2 days. I've tried reading the mechanism model # from the case back window.  I think it says 205.111 (capacitor?), although I read that it was supposed to be the later 205.911 with a lithium button cell battery. It originally came with a tag on the band indicating a 100-day power reserve. Any suggestions?  Is the watch worth saving?  Perhaps just needs a new cap or battery?  Personally one of the reasons I got it was because I was hoping that I would never have to replace the power cell (whatever it is). one of the reasons I don't like Seiko Kinetics is the cap/battery failure after 5-6 years, I think they are waste of space. Seiko did use a capacitor that lasted 5 years or so, now they use a rechargeable battery in place which does last a bit longer, time will tell. I would say your Tissot needs a new cap or battery, what would it cost to replace the cell and pressure test compared to a new watch is what to need to weigh up.

The whole autoquartz thing is a gimmick given that some watches with non-rechargeable lithiums last 10 years. It's not clear to me that the avg. lifespan of an autoquartz rechargeable is that long, so what is the point? I was hoping it was something like a more reliable polyester or ceramic cap, although I realize that wouldn't have decent capacity. More likely an electrolytic cap in a button cell form, and those things leak/dry up.  I once had a PC completely die on me.  After opening the top, the thing that stuck out for me was that one electrolytic cap blew off, and I finally found the tube at the other end of the motherboard. I've got a few 10 year lithium batteries - mostly Casios.  My 20 year old original G-Shock (if I could just find it now) came with a CR2320 cell and actually lasted around 10 year and worked fine with a replacement cell. Frankly I liked the look of the watch.  My younger relatives get a kick out of watching the rotor move, and it has the accuracy of a good quartz watch.  I like a solid _link_ band after I had a bunch of Casios break on me.

The whole autoquartz thing is a gimmick given that some watches with non-rechargeable lithiums last 10 years. It's not clear to me that the avg. lifespan of an autoquartz rechargeable is that long, so what is the point? exactly, if the capacitor had a 30year lifespan then the idea would be great, but as it turned out 5-6years was the norm, not sure how long the replacement rechargeable lithium cells last, but even if it lasts 10years it still won't be as economical as a stock lithium battery running a standard movement. the Seiko spring drive makes much more sense in this respect.

the Seiko spring drive makes much more sense Things that make sense ... the Citizen Eco-Drive with .... a photoelectric cell. ** Posted from http://www.teranews.com **