Quite remarkably, this 1994 'S988xxx serial' Zenith Cosmograph Dayonta ref. 16520 was kept aside for 5 years by its Rolex AD then retailed as "new old stock" in 2000. Atesting to just how well it was cared for, this first automatic Rolex Chronograph still retains its Rolex hologram caseback sticker and upgraded (at the point of sale) Rolex 'SEL' 78390A Oyster Flipolock bracelet when officially retailed in March 2000. Featuring the white 5 line "straight 6" Tritium dial, framed by its "400 UNIT" tachymetric bezel. Powered by Zenith's historic El Primero calibre 4030 movement and waterrproof to 100m. Naturally this important chronograph is accompanied by its Rolex box & punched Rolex papers dated March 2000.