Cal. 889/1 nickel-finished lever movement 52 jewels silvered matte dial applied luminescent baton numerals luminescent hands three subsidiary dials for date combined with constant seconds month combined with leap year indication and 30 minute register day combined with 12 hour register aperture for moon phases circular water-resistant-type case engraved bezel to 60 units two round chronograph buttons in the band protected screw-down crown sapphire crystal display back secured by eight screws case dial and movement signed platinum Chopard buckle