SOUTHERN OCEAN SO35S100 Case material: tempest-silver Bioceramic case including crown Strap color: Tempest Silver / Aurora Purple NATO Case diameter: 42.3 mm Case thickness: 14.4 mm Lug-to-lug distance: 48.0 mm Movement: SISTEM51 mechanical movement Water resistance: 50 fathoms (91 m / 300 ft / 9 bar) Glass: biosourced material Hands, hour markers, 60 minutes diving scale: Grade A Super-LumiNova® Bezel: one-direction rotating bezel in tempest-silver Bioceramic with aurora-purple insert Strap: NATO strap made from recycled Antarctic icebreaker hull composites