In a modern interpretation of the original 70s dive watch, wear the new Promaster Mechanical Diver – the timepiece with a deep backstory. Inspired by the design of the 1977 Citizen Challenge Diver that was found on an Australian beach in 1983, the watch was covered in barnacles after having been submerged in the Pacific Ocean for years but was still ticking. That history has inspired our new Promaster Mechanical Diver and given it the affectionate nickname, Fujitsubo – Japanese for barnacle. The lightweight and scratch-resistant Super TitaniumTM case is complemented by a black dial with embossed hands and a classic green luminous accents for a vintage feel, a rotating elapsed-time bezel, and an anti-reflective sapphire crystal. The retro look is completed with the black polyurethane strap with a raised square pattern. This advanced timepiece with automatic movement features enhanced magnetic resistance to protect against external magnetic fields, as well as a 42-hour power reserve. This high-performance watch comes in an exclusive collector’s dive tank box, is ISO compliant and water resistant to 200 meters. Caliber number 9051.<ul><li>41mm scratch-resistant Super TitaniumTM case with a rotating elapsed-time bezel</li><li>Scratch-resistant and anti-reflective sapphire crystal</li><li>Lug Width: 20mm</li><li>Black dial with a date window at 3 o’clock and luminous accents</li><li>Black polyurethane strap with a buckle closure</li><li>9051 automatic movement with a 42-hour power reserve (Powered by the release of a wound spring, mechanical movements never require a battery. Automatic mechanical movements have an oscillating weight that winds the spring with the motion of the wearer’s arm.)</li><li>Antimagnetic up to 16,000 gauss and -10~+20 s/d</li><li>Water-resistant up to 200 meters/20Bar (scuba diving)</li><li>Citizen Style #: NB6021-17E</li></ul>