Cartier clock battery

[Adrian Williams]

My mother has this Cartier clock that was bought for her by my late father 20-25 years ago (we think).



The clock stopped working but as the battery is only showing 0.86v I was going to replace it.

The battery is marked CARTIER PARIS LSA-SR850, I've tried various Google searches but can't find a replacement anywhere. Sorry about the terrible picture quality but battery is below.



I'd be grateful if anyone can point me in the right direction for a battery source.

Also if there are any experts out there who know something about theses clocks I'd be pleased to find out more. For instance are they simply a cheapish movement clothed in a reasonable housing making them a triumph of marketing over substance or is there more to them?

Adrian

[bry1975]

There you go:-

Edited by bry1975 on Saturday 12th March 19:47

http://shopping.microbattery.com/s.nl/it.A/id.4884...

Took less than a minute to find.

Edited by bry1975 on Saturday 12th March 20:24

[bry1975]

I would imagine the quartz movement being either Japanese or German what does it say on the back?

[Adrian Williams]

Many thanks for the link Bry, I'll get one on order.

With the rear cover removed it looks like this



The inscription on the circuit board is: 4,194304 MHz 1,35V - 7,8ms

The writing on the steel plate is: CARTIER NO(O) JEWEL UNADJUSTED SWISS

[bry1975]

That sounds way to high for quartz frequency either way she must be an accurate clock?.

Bry

[Adrian Williams]

I've double checked Bry and that's what's printed on the board.

Educate me, what does the frequency tell you.


Adrian

[bry1975]

The higher the frequency the more accurate the electronics.

I will ask around about the high frequency stated as it seems very high.