309Ref

Reference 309 is a 35mm NOMOS Orion model featuring a stainless steel case, a white silver-plated dial with gold-coloured markers, tempered blue hands, and a sapphire crystal case back. It is powered by the manual-wind DUW 4001 calibre, housed in a 35mm by 8.7mm case with a 45mm lug-to-lug distance. The watch is water-resistant to 5 atm and comes on an 18mm black Horween Genuine Shell Cordovan strap.