The new model is based on a classic digital watch design from 1982 known as the Rotocall. This iconic creation featured a distinctive octagonal rotary switch that revolutionized the way users changed modes by simply rotating the bezel. The unique design, along with its popularity among astronauts, contributed to this model’s strong international recognition. Technical Data Movement: Quartz Caliber: A824 Precision: 20 seconds per month Battery Life: Approx. 3 years Case Material: Stainless steel Case Diameter: 37.0 mm Case Thickness: 10.6 mm Case Length: 43.5 mm Crystal Type: Hardlex Lug Width: 20 mm Water Resistance: 10 bar, 100 meters (330 feet) Weight: 107.0 grams Features Rotary switch Chronograph up to 100 hours in 1/100 second increments Alarm function (single-time alarm) Dual-time function Battery life warning function Stainless steel multi-link bracelet