This signed Tudor black rubber strap is the model for the Tudor Hydronaut. It will fit a watch with 20mm lugs. It is six and a half inches in length, and it should fit up to an eight inch wrist. It is accompanied by a signed Tudor SS deployant clasp, in pristine condition. Although it is mildy curved from being mounted on a watch, this strap is in near mint condition. If you have a Tudor watch that needs a new strap, this is a great way to dress it up. TUD090$250.00 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.