Steel Bremont Mustang P-51 Automatic, Limited Edition of 251. 43mm Bremont Trip Trick case. Water resistant to 100 meters. Modified calibre 13 1/4” BE-54AE automatic chronometer, 25 jewels, Glucydur balance, Anachron balance spring, Nivaflex 1 mainspiring, 28,800bph, 42 hour power reserve. Hand-crafted aluminum rotor from 44-12016 skin. Black dial with Arabic numerals and aluminum sub dial. Functions include; hour, minute, second, date at 4H, chronograph with seconds and 30 minutes, and 24 hour UTC hand. Brown leather strap with buckle. Additional fabric strap included. Box and papers dated December 2011. Our reference A1546.