Same movement can be found in Rolex pocket watches from the same period. Cal.526 - - - #cortebert #rolex #vintagewatch #cal526 #kriegsmarine... | By Cortebert Collector | Facebook
Movements – Vintage Rolex and other iconic timepieces under the loupe at Perezcope
Rolex 618 PAM 21 – Vintage Rolex and other iconic timepieces under the loupe at Perezcope
Vintage Cortebert Caliber 526 Pocket Watch Movement Parts Repair | eBay
Cortebert Spirofix Sport vintage watch handwinding ref: 9220 | eBay