Rolex Yacht‑Master 41 mm (Black Dial) — Key Specs Specification Details Model Name Rolex Oyster Perpetual Yacht‑Master Case Size 41mm (most black‑dial variants) Case Material Rolesium (Oystersteel Platinum) or Rolesor / Precious Metals (depending on reference) Bezel Bidirectional rotatable 60‑minute graduated bezel (precious metal or Cerachrom in select models) Dial Color Black or intense black dial with luminescent hour markers Crystal Scratch‑resistant sapphire with Cyclops date magnifier Movement Rolex Calibre 3235 automatic, self‑winding (in modern 40–42 mm versions) Power Reserve Approx. 70 hours Functions Hours, minutes, seconds, date Bracelet Oyster bracelet with solid links Clasp Oysterlock folding safety clasp with Easylink comfort extension Water Resistance 100 m / 330 ft Certification Rolex Superlative Chronometer (‑2/ 2 sec/day) Style Category Luxury nautical sports watch
