Just swapped an ETA 7750 into the 3777. Thought I would keep the ETA white date wheels since the red ones aren't very good. Kinda like the black on white.
I used the A7750 hands so it was not easy. The sub hands are just a tad bigger on the A7750 so they did fit ok. If you were to pull them on and off a lot I would get worried they were too loose. The hour and minute fit perfect. The chrono seconds is the tough one since its too small. Had to gently enlarge it with a pin. But, once you do that it won't be tight enough to the pinion and slip when it gets reset. So I used cement to glue it in. Tricky since you need to make sure it's centered correctly and stuff.Did you have to get new hands? How did the swap go?
I used the A7750 hands so it was not easy. The sub hands are just a tad bigger on the A7750 so they did fit ok. If you were to pull them on and off a lot I would get worried they were too loose. The hour and minute fit perfect. The chrono seconds is the tough one since its too small. Had to gently enlarge it with a pin. But, once you do that it won't be tight enough to the pinion and slip when it gets reset. So I used cement to glue it in. Tricky since you need to make sure it's centered correctly and stuff.
All in all very happy with it and learned a lot. I don't want to wear it though since its too big for me! So I'll keep it mint and flip it to someone who can give it a good home.
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Love your strap... classy ! where did you sort it out ?
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Ok here you go. Sorry my phone does not have a macro mode so could not get up close in focus.
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