Solid, polished finished, 18kt Everose gold case with brushed & polished finished center lugs. Polished 18kt Everose gold screw-down crown with Rolex's patented ""Triplock"" triple waterproofness system, ensuring that the crown screws down against the Oyster case as securely as a submarine hatch. Screw-down chrono buttons in polished 18kt Everose gold. Bezel: Fixed bezel.Black ""Cerachrom"" bezel, made of highly durable ceramic that is extremely hard, highly scratch-resistant, has excellent corrosion resistant properties & is unaffected by ultraviolet rays so the color will not fade. Rose gold filled engraved tachymeter scale on the bezel.Dial: Black dial with pink/rose colored sub-dials. Fine printed minute/seconds & fractions of a second track. Polished rose gold hands, hour & minute hands with luminous fill. Chronograph/Stop watch function: Large central seconds counter hand, able to measure time up to 1/8th of a second. 30 minute counter sub-dial located at the 3 o'clock position. 12 hour counter sub-dial located at the 9 o'clock position. Continuous running small seconds hand sub-dial located at the 6 o'clock position. Rolex in-house calibre 4130, beats at 28,800 vph, composed out of 290 parts, contains 44 Jewels & has an approximate power reserve of 72 running the time only or 66 hours with the chronograph function running.