Hi Chaps, I have been unwell for a week now but will respond to the thread I started on sourcing clock materials. Thank you for your kind replies. I work with Hermle movements all the time - esp the Hermle 1151 and 0451 mechanisms. I know these movements inside out! However I have come across an issue - I want to know why a movement that I recently serviced 'clicks' during the hour strike? There was nothing catching anywhere BUT as the clock struck the hours there was an audible click (or clonk, whatever you want to call it). I have done serviced and repaired loads and loads of these movements over the years but never heard this noise before during the hour strike! Can someone just confirm that the strike warning pin is best set in the top position (ie at 12 o clock position) when setting the correct position of the gathering pallet? (ie at mid position) Thank you as always for any comments received.