Yes, I've done a number divers including 75XX quartz, but no 7549. The movement and case construction are close however. It looks like the 150M is missing a bezel? Not sure if you still have that. Also It would be good to know if the movements are still functional. IMO the 150m might end up costing more than it's worth, maybe not the Tuna. Conversely If they have sentimental value or if you plan to wear them as a daily it's a different story. Are there DMs in this app? haha I don't really use watchcrunch much.
The ETA suffers from reversing wheel jam ups so when you hand wind it spins the rotor like mad. Any one know if the Miyota has any issues like this?
lug to lug and thickness makes a big impact on size as does dial size and dial color!
not sure if you all remember 'the slender wrist' now 'time squared,' but he did a really comprehensive breakdown on how casesize can be deceiving.
https://www.youtube.com/watch?v=QldfWgOS9Yg
There were original in-house movements in the mix(from brands I would consider independent watch makers rather than micros), but those are disappointingly long gone. Defiantly not a watchmakers competition 😑
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