Sinn Watch 206 Arktis II Nato 206.012 Nato.  This remarkable Sinn 206 Arktis II watch represents a contemporary take on the original 203 Arktis collection which became the first diving chronograph to feature Sinn’s famous temperature resistance technology. The innovation guarantees functional reliability in temperatures ranging from -45 to +80 Celsius. This Sinn 206 Arktis II also celebrates 20 years since the original 203 model was released which is beautifully represented in its new, larger stainless steel case measuring to 43mm. In keeping with its original aesthetic, this striking Sinn 206 watch is presented with a sunburst blue dial decorated with hour, minute and chronograph seconds hands coated in luminescent colour. The dial is also equipped with a day and date window and three subsidiary dials for continuous seconds, 30 minutes counter and 12 hours counter, all powered by the remarkable Valjoux 7750 self winding movement. In typical Sinn fashion, this Sinn 206 Arktis II watch is fitted with an incredible range of innovations including a diver’s bezel with minute ratcheting and luminous key mark, Ar-Dehumidifying Technology which enhances functional reliability and freedom from fogging and push-pieces with D3-System. For one final touch of sophistication, this Sinn 206 watch is complimented by a sporty black NATO strap and stainless steel pin buckle.