Railway Regulator Watch bearing, it seems to me, No. 1005 - The glass needs to be changed, very scratched - The movement seems to be working (starts then stops) but the winder seems not to wind the spring - it therefore needs to be serviced and clean - in its juice of finds - Ref. 31300319/30 - Diameter 6 cm - Weight 0.160 kg - SHIPPING POSSIBLE IN GLOBAL RELAY Contact me GUARANTEED SHIPPING VERY WELL PROTECTED - Payment by bank check, bank transfer with Iban and BiC - No PAYPAL payment - NO PAYPAL THANK YOU for LOOK CAREFULLY AT ALL PHOTOS because THEY ARE AN INTEGRAL PART of the DESCRIPTION and ALLOW YOU TO SEE the OBJECT AT THE BEST with ITS POSSIBLE SMALL DEFECTS -