In 1981,Momo designwas founded as a Style Center. The company soon grew out of the racing world, with its mission of fusing technology and aesthetical value for life products. Momo watches are one of the products that helped define the company's image. Case: Brushed and polished black PVD coated stainless steel Caseback: Stainless steel, screw-down Bezel: Black silicone, unidirectional rotating Dial: Black, with white accents Hands: Silvertone, luminescent Markers: White Arabic numerals and luminescent indices Calendar: Date display window between the 4 and 5o'clock position Subdials: Three, small seconds at the 6 o'clock position, 24 hour time display at the 3 o'clock position and a chronograph 60 minute counter at the 9 o'clock position Strap: Black silicone Clasp: Push-button deployment Crystal: Mineral Crown: Screw-down Movement: Quartz Water resistance: 10 ATM/100 meters/330 feet Case measurements: 46 mm in diameter x 13 mm thick Strap measurements: 26 mm wide x 8 inches long Box measurements: 9 inches wide x 9 inches long x 5 inches high Model: MD1004BK-02BKWT-RB All measurements are approximate and may vary slightly from the listed dimensions. Men's watch bands can be sized to fit 7.5-inch to 8.5-inch wrists. A screw-down crown (knob) creates a water-resistant seal. To unscrew the crown, turn counter-clockwise and pull/push into position to set time, date, and other functions. To close the crown, press it against the case and turn clockwise. Color: Black. Gender: Male. Age Group: Adult.