Movement: Powered by the reliable in-house Seiko Caliber 4R35 automatic movement.Functionality: Supports hand-winding, a stop-seconds hacking feature, and an analog date window at 3 o'clock.Power Reserve: Approximately 41 hours.Water Resistance: Rated at 5 bar (50 meters), making it safe for daily splashes but not swimming.Case Dimensions: 39.5mm diameter, 11.8mm thickness, and 46.0mm lug-to-lug distance