Servicing a white gold Daytona

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Hi TRF,

I'm currently servicing a 116509 and would like to take you along with some pictures

This is just a regular service, no out of the ordinary parts needed replacing. The seconds gear and chronograph wheel were still of the 'old style' and need to be replaced for the updated version.
The driving wheel for ratchet is worn to shreds... This transfers the energy from the automatic module into the mainspring (casually explained).