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Caseback diameter 43mm Tudor Bronze Black Bay?

Knxvlln

Active Member
Certified
14/5/20
250
163
43
United States
Does anybody know...

I have a standard set #1-7 hedapai caseback wrenches, always used to open any and all Rolexes and Tudors Rep and Gen. Went to open a 43mm Bronze Bay... it's slightly larger than the #6-29.50mm(Sub standard). Google and Tudor tech was fruitless. I see dies offered in 30.5, 31.5 etc all the way to Daytona size... I would like to know without buying them all. Anybody have experience? My crappy micrometer is not sensitive enough, especially with the curved notches.

Thanks again RWI I am confident somebody knows. Already tried to search the forum to see if anyone has already run into this issue.

Thanks all.
 

xanadux

Getting To Know The Place
11/4/22
49
20
8
I need to open my Tudor bronze 43 mm, so which is the right size of the opener?