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for the most part no. Each individual watchmaker and/or shop had their own system. One of the shops I worked at basically had a reference to a page number in a book. then there are some shops that do no markings at all as they keep their records on a computer and they don't have to mark the watch. Usually if somebody is marking and they've service the watch before you'll see those next to each other. then as far as anything resembling a standard goes at one time the American watch and clockmakers Institute assigned all of their members a number. but that was a very long time ago and I doubt that they are using it anymore. -
By RichardHarris123 · Posted
https://perrinwatchparts.com/products/jaeger-lecoultre-caliber-911-winding-stem-tap-120-measurement-58-110-smooth-shoulder-l-550-thread-l-420-with-addition-shoulder-before-thread One here but it's from America, not sure what the shipping will be. I don't think the 916 would fit, another problem is JL parts are restricted. Only other option is to measure the stem and get a generic replacement. -
By nevenbekriev · Posted
Hi Joe, Use the same direction - from inside to otside - for both pressing out the old setting and pressing in the new one. This is the way to prevent the bush of the setting from danage. There is another option too - to replace the stone only, if a stone with the right sizes is found. By the way, the stone will break only for a reason, and there is no much reasons but one, so check if the pivots of the weel are intact. -
By RichardHarris123 · Posted
Hello and welcome from Leeds. Ask away, that's what we're here for. -
By RichardHarris123 · Posted
Pretty sure the marks aren't standardised, each repairer having their own code.
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