CASE : Vertical Brushed Stainless Steel 316LCASE-BACK : Polished Stainless Steel 316LDIAL : Matt Black Dial with Khaki color print and Thick printed Khaki color Arabic numbersDIAMETER : 38.9mmTHICKNESS : 13.00 mmGLASS : Double Domed Sapphire Glass with Anti-Reflective CoatingWATER RESISTANCE : 5 ATMSTRAP : Black (Calf Harrison) Leather with matched stitchingDIMENSIONS : 20x16 mmBUCKLE : Solid Stainless Steel 316LCALIBRE : 13¼''' Manual winding - monopusher chronograph - single push-button at 2 o'clockMOVEMENT : Sellita SW510 M MP b Manual WindingDECORATION : Gold engarving, Côtes de Genève motifs, blued screwsFUNCTIONS : Analog Display: Hours, minutes and small second at 9 o'clock60 seconds counter in the center, 30 minutes counter at 3 o'clockFREQUENCY : 28'800 vibrations per hour (4 Hz)POWER RESERVE : 58 hours