Seiko automatic chronograph 8R46 strange operation
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I can remember in the army, doing a tactical night march and the officer leading the march had the bright ide of taping his compass (with tritium tipped hands) to the end of the barrel of his rifle so he could get a better bearing in the dark. We ran around in circles for hours until he realized that the compass was reacting to the steel of the rifle barrel. To say he was unpopular was a bit of an understatement. -
By Neverenoughwatches · Posted
I bought a compass to detect magnetism. The magnetic tip reacted to both magenetised and non magnetised basic steel so it became a guessing game as to whether my test subject was either weakly magnetised or dense steel. I've found the best way to detect magnetism is by using the smallest unmagnetised screw and a known piece of unmagnetised steel to test the screw and another piece of known unmagnetised steel to test the first known piece of unmagnetised and another....................... 😂 -
Ha ha, reminds me of this: "Don't go puttin' none of that stuff on my sled, Clark. You know that metal plate in my head? I had to have it replaced, cause every time Catherine revved up the microwave I'd pi$$ my pants and forget who I was for a half hour or so. So over at the VA they had to replace it with plastic."
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By watchweasol · Posted
Hello and welcome to the forum. Added a little help for you . TZIllustratedGlossary.pdf -
Hi @VWatchie - I have model of this Mondaine quartz watch in my collection, just a smaller size. I bought it many years ago, new.  I wonder if  the crystal on your watch is original?  My original crystal was entirely flat.  I scratched it at one stage and replaced it.  There is a dealer located in the UK who sells replacement crystals for Mondaine on the big E - I bought mine from him.  If you PM me, I’m happy to forward the listing details - he may keep different sizes for the Mondaine range?.  The replacement he sent to me was a perfect replacement for the original.  On a side note, the Ronda movement in these is very easy and fun to work on.  They’re also very cheap to replace.  I learnt a lot about the big date complication when the smaller date wheel spring mechanism malfunctioned and the date changing stopped. I stripped down the movement and it went back together very smoothly and continues to work perfectly.  I like the streamlined aesthetic of the Mondiane line.  I also have one of their big date mechanical movements which runs on an SW200-1. The crystal on that is also perfectly flat, btw.  Cheers, John
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