Audemars Piguet Royal Oak Offshore Brown Dial Chronograph Watch 26470ST. Automatic self-winding chronograph movement. Stainless octagonal case 42 mm in diameter. Exhibition sapphire crystal case back. Black ceramic crown with a brushed stainless steel center & an engraved AP logo. Black ceramic chronograph buttons. Stainless steel bezel punctuated with 8 signature screws. Scratch resistant glareproof sapphire crystal. Brown dial with Mega Tapisserie waffle pattern, white gold arabic numerals and hands with luminous fill. Central Seconds hand. Date window at 3 o’clock aperture. Tachymeter scale around the blue inner bezel. Three blue chronograph sub-dials — 60 second, 30 minute and 12 hour. Black alligator leather strap with stainless steel deployent buckle.