Reactor Poseidon - Black Red Dial - 1000 Meters - Day Date - 2 Rotating BezelsThe Poseidon is the ultimate dive watch for extreme divers. These watches meet or exceed the ISO 6425 Professional Dive watch standard, have and inner and outer rotating bezel, and a triple secure clasp with wet suit extender. Solid forged stainless steel case Internal and external rotating bezels Day Date window at the 4 o'clock position Superluminova hands and markers 1,000 Meter water resistance (3300 feet) Meets or exceeds the ISO 6425