Rolex Sky-Dweller Watch. 42mm 18K yellow gold case, bidirectional rotatable ring command bezel, champagne sun-ray dial, automatic Rolex caliber 9001 movement, second time-zone displayed via off-center rotating disc, saros annual calendar with date at 3 o'clock and month indicated in discrete apertures at each of the 12 hour marks, 18K yellow gold Oyster bracelet with Oyster clasp and easy link extension link.