This RGM model 151 black rubber dive strap was signed for the 151P series of RGM pilot's watches. It has curved ends to fit cleanly against the case of the watch. This authentic RGM strap has a satin finished SS tang. It is eight inches long and should comfortably fit even the largest wrist. RGM182$50.00 Please feel free to contact us by phone or email if you have questions or wish to order any watch. Click on Policies and FAQ for details about watch purchases and our three day return policy. Ed and David Loebl THE WATCHSELLER, LLC 6890 East Sunrise Drive #120-143 Tucson, AZ 85750-0739 520-615-8800 deloebl@comcast.net THE WATCHSELLER, LLC is the US distributor for Epos watches and is an authorized dealer for Aristo, Atlantic, RGM, and Vollmer watches. We are not an authorized dealer for any of the other brands of watches that we offer for sale. All watches sold by The Watchseller are genuine and authentic.