gorilla 39Diameter: 39.00 mm; Thickness: 11.00 mm; With crown guards: 43.10 mm; Lug to lug: 50 mm; Water resistance: 100M330FT10ATM; Scratch resistant sapphire, double anti-reflective-there's a new board in the tree room with the gorilla code of conduct on it. it outs what behavior is appropriate and what isn't. if someone isn't being a cool gorilla