I had a fascinating conversation with a retired horologist (watch maker) last night over dinner that I thought would be worth discussing in a blog.

In essence, I have a smart watch that I often wear for going out as many people do and as it’s a designer brand, it’s fair to say that it attracts designer prices to change a battery and he took the words out of my mouth when he said that Timpson’s charge £25 to change a battery on those sort of watches.  A jeweller in Leith, Edinburgh can do the same job for £4 in under 60 seconds apparently.

The reason given is that it is because it is water resistant and it needs to be resealed, which is impossible according to this expert on watches.  The casing that holds the mechanism will be sealed anyway and is separate from the backing which holds the battery that cannot be sealed.

The nub of this is the difference between water resistant and waterproof.  A water resistant watch is simply splash proof at best with no pressure test and the mechanism will deteriorate if it comes in to contact with water, whereas waterproof is as it says.

You can use a water resistant watch in normal day-to-day activities, although they are not designed to be submerged in water or to withstand heavy rain.

A waterproof watch will withstand being submerged to a certain extent, although prolonged use and age will invariably weaken the sealant used.

Also, you get what you pay for as well, which can be said for most products.

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