The world? first curved chronograph movement features high-performance quartz technology with 262 kHz vibrational frequency for precise accuracy. Five-hand chronograph in a black stainless steel case with black and transparent blue dial, black hands and markers, anti-reflective curved sapphire crystal, exhibition case back with screw-back case, blue leather strap with an alligator grain texture and double-press deployant closure. Water resistance to 30 meters. Case size 44 mm.