Movement: Fully automatic Swiss-made SISTEM51 mechanical movement, consisting of only 51 pieces with a single central screw. Power Reserve: Up to 90 full hours. Water Resistance: Up to a depth of 91 meters (equivalent to 50 fathoms / 9 bar). Case Diameter: 42.3 mm, with a thickness of 14.4 mm. Material: The case and crown are made of innovative Bioceramic material (two-thirds ceramic and one-third bio-sourced materials from castor oil). Strap: Durable NATO fabric strap striped in blue and white, made from recycled ocean fishing nets. (. Highest offer, I will sell ) ✅