Nomos Glashutte Watch Tetra Neomatik Sapphire Crystal 421.  Steering clear of the conventional round dial that Nomos watches have become so famous for, the Nomos Glashutte Tetra Neomatik surprises with its quirky and perfectly square 33mm case. Housed within the stainless steel is the DUW 3001 automatic calibre made exclusively in house by Nomos watches, a movement that boasts their new swing system that promises complete accuracy and a water resistance of 300 metres. You can watch the movement hard at work through the open case back where the silver rotor twirls with every flick of the wrist.  Thanks to the slim calibre, the Nomos Glashutte Tetra Neomatik watch comes to only 7.2mm in height making it a discrete work of art that sits comfortably and subtly on the wrist. Beneath the scratch resistant sapphire crystal glass is a crisp galvanised white dial set with cyan blue and scarlet red accents and black oxidised steel hands for an easy to read finish. The timepiece is completed by a Horween Genuine Shell Cordovan black leather strap and Nomos branded buckle clasp.