Movement 5X83 Drive mode Solar GPS satellite radio wave correction Accuracy Average monthly difference when not receiving ±15 seconds 14 jewels Overcharge prevention function Power saving function Stopwatch function (1/20 second measurement 12-hour meter) Perpetual calendar function (until February 28, 2100) World time function (38 time zones) Dual time display function Week display function Power reserve display function Time transfer function Time zone correction function and super smart sensor function through satellite radio wave reception Captured satellite number display function Reception result display function DST (Daylight Saving Time) function Reception off function (flight mode) Automatic needle position correction function Case, strap material Rust-proof Case coating Diamond shield Case size Thickness: 12.9 mm Width: 42.0 mm Length: 49.6 mm Glass material Hyperbolic sapphire Glass coating Ultra-clear coating Luminous (hands/indexes) One-touch tri-fold method Enhanced waterproofing for daily life (100m) Anti-magnetic Yes Weight 156.0g Nakadome with smart adjustment mechanism Comfortex Screw back