Breitling 18mm x 16mm Brown Calfskin Leather Watch Strap 417X New Authentic OEM
The Breitling reference number is 417X. This will fit multiple Breitling model including Colt, Galactic 36, Superocean II 36. The sizes are 18mm at the lugs, 16mm at the buckle end. The length is 115mm x 80mm.