Nasty.Īnother point worth noting on older quartz watches is that they are partly mechanical, they have gears and jewels. The silicone caseback seal can sometimes rot away and fragments get inside the movement. Sometimes, as with the vintage Omega above, it can be 30 years of dirt from an old guy’s wrist, that sneaks in under the snap-on caseback – sweat too. In general, modern quartz movements fail to start again after a battery change because moisture has got inside. You see the copper wire coil in the photo below? DO NOT TOUCH IT. Again easily done, especially if you like changing batteries with kitchen knives and £1.99 screwdrivers from the local 8-til late shop. You touched the capacitor or battery contact arm and broke it. About one time in ten this might get the movement alive again, depends how long the dead battery has been rotting away for… Use a blower to try and get dust specks out. If you have some petroleum ether then use tweezers to drop a little onto the movement, and carefully clean the battery contact with ether.
Once that happens the movement is usually dead, game over. Occasionally, an old battery might split. You can see this oxide residue sometimes, a fluffy greenish dust will be lurking inside the battery slot. Fit a Sony, Renata or decent quality brand – cheap pound shop batteries will not last long.ĭead battery oxidised. Some have SR numbers, but others are just called 377, 373, 341 etc.
#Quartz watch battery replacement serial
So, always Google the watch make n model and track down the CORRECT battery serial number.
Some Casio watches have two batteries, plus they need to have tweezers placed onto the contact points after fitting to reset the movement – usually the contact points are marked but you might need a loupe or magnifying glass to see them.
#Quartz watch battery replacement serial number
The serial number of the battery is on the old one, but don’t assume the last fitter placed the correct battery in there. Unlikely in most cases, but more typical errors include trying a little 346 or a tiny 379 into a watch that needs a beefier battery. Easily done, for example a 364 or a 377 will both fit into a typical quartz movement battery slot, but the 364 is slimmer so it might not make as good a contact. Let’s start with the basics and assume you had a go yourself and don’t really know what you’re doing. This can be a common problem and there are plenty of reasons why the watch doesn’t want to start ticking again.
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