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. Box and papers dated October 2011. Our reference S21286.