SINN U2 SDR TEGIMENTEDAny questions? Click here to text us. Available 24 7 The Sinn U2 SDR Tegimented watch is engineered for extreme conditions, making it the ideal choice for divers and adventurers. Featuring a robust 44mm Tegimented Hardened Steel case and bezel, this timepiece is designed to withstand the rigors of underwater exploration. With an impressive 200ATM 2000m water resistance, this watch is built to perform in the most challenging environments. Movement