1575 GMT Which Centre second/cannon pinion/ hour wheel/ 24HR wheel combination

[livo]

Hi Guys, I have a 1575 GMT Movement, the Rolex parts catalogue gives 2 part numbers each for the following, centre second pinion (7838 & 8038), cannon pinion 8031 & 8037), Hour wheel (8032 & 8039), 24hour wheel, ( 8033 & 8040), I know which parts go together, what determines which height to use ?, thanking you in advance.

[misiekped]

It depends what model you doing the movement for
1675 or 1655


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[livo]

Hi, 

 

Thanks for the info, would you happen to know which height goes with which model ?, thanks again.

[misiekped]

Get the smaller for 1675


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