Movement: CVSTOS 531 Automatic. Functions: Hour, minute, second, date. Characteristics: Double barrel, instantaneous date change. Power-reserve of 120 hours, 33 Jewels. Rotor: Exclusive CVSTOS 888 Palladium alloy and titanium grade 5. 28,800 vibrations per hour. Case: Tonneau shaped 53.70mm x 41.00mm, Steel, red gold, white gold. Polished and satin-finished. Rubber bezel (Challenge-R). Sapphire crystal. Water-resistance to 100 meters. Screws: Polished titanium grade 5, exclusive CVSTOS TECHNOLOGY pattern. Crown: Screw-down, polished titanium grade 5, rubber insert. Dial: Sapphire, none-reflective coating, exclusive CVSTOS TECHNOLOGY decoration. Index: Chromed and Super-Luminova treated. Hands: Pierced, chromed and Super-Luminova treated. Strap: Black rubber, version with detachable links available. Buckle: Highly adjustable folding clasp.