Isobrite Valor ISO306 Black Watch | Silicone Color:Black The innovative heart rate sensor

The innovative heart rate sensor monitors changes in blood flow by shining light through the skin to detect changing reflections

Size: 38 mm

Washers: Phosphor bronze

and a matte finish on the case and band

Color: Maplewood / Green Sandalwood

Isobrite Valor ISO306 Black Watch | Silicone Color:Black The innovative heart rate sensorIsobrite is the world's first T100 tritium illuminated lightweight polycarbonate watch. Unlike ordinary tritium watches that use T25 tritium illumination, the Isobrite watch uses ultra bright T100 tritium illumination. This makes it 4 times brighter than the competition. The Isobrite ISO306 Valor Watch features a lightweight polycarbonate face with a sapphire crystal protecting a black colored face with matching tritium illumination and crown, all on