Revue Thommen was founded in 1853 by Gedeon Thommen and has since developed into one of the leading Swiss watch companies. Early on, only wristwatches and pocket watches were produced and they relied exclusively on their own movements. In the 1920s Revue Thommen also started producing instruments for the aviation industry. This segment was constantly expanded, and today, Revue Thommen's instruments are among the leading products in the aviation industry.
Case: Black PVD coated stainless steel, RoundCaseback: sapphire, Screw-in, TransparentBezel: Black with rose-tone accents, Uni-DirectionalDial: Black, Tachymeter scale displayed around the flange, analogHands: BlackMarkers: Arabic Numerals, WhiteCalendar: Day-Date at the 3 o'clock positionSubdials: Chrono 30 minute counter at the 12 o'clock position, 12 hour counter at the 6 o'clock position, small seconds at the 9 o'clock position, Center sweep second, 30 minute counter at the 12 o'clock position, 12 hour counter at the 6 o'clock positionFunctions: Hour, Minute, Second, Day-Date, Chronograph, TachymeterStrap: Rubber, BlackClasp: Deployment, Stainless SteelCrystal: SapphireCrown: Screw downMovement: Valjoux caliber 7750, 25 Jewels, 28800 oscillationsWater Resistance: 10 atm/100 meters/330 feetPower Reserve: 44 HoursCase measurements: 43.5 mm in diameter x 15.6 mm thickStrap measurements: 22 mm wide x 8 in longCountry of Origin: SwitzerlandModel: 16071.6884
All measurements are approximate and may vary slightly from the listed dimensions.Automatic movement winds with the movement of your arm. It is recommended that you wind the watch every two weeks.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.