Stainless steel case with a black (calfskin) leather strap. Fixed stainless steel bezel. Blue dial with luminous silver-tone hands and Arabic numeral hour markers. Arabic numeral minute markers (at 5 minute intervals). Minute markers around the outer rim. Dial Type: Analog-digital. Luminescent hands and markers. Chronograph - two sub-dials displaying: 60 second and 30 minute. Scratch resistant sapphire crystal. Solid case back. Round case shape. Case size: 42 mm. Band width: 22 mm. Tang clasp. Water resistant at 50 meters / 165 feet. Functions: chronograph, hour, minute, second, heart rate sensor, microphone, altimeter, Bluetooth, 8 gb storage. Summit 2 Series. Sport watch style. Montblanc Summit 2 Chronograph Analog-Digital Blue Dial Men's Smart Watch 124311.