Stainless steel. Ref. 16520. Like-new case no. A730507. Black dial with off-white (tropical) sub-dials. Automatic chronograph movement, Zenith-based. Oyster bracelet 78390 A, with fliplock fold-over clasp, wrist size 20.5 cm. D 38 mm. Rarely on offer as such a complete set, and in exceptionally good condition. The 3 sub-dials in warm shades of off-white provide an attractive contrast to the black background. With box, warranty, operating instructions, Rolex seal, Rolex service warranty July 2019.