An unusual oversized gold rectangular wristwatch, Cartier, 'Tank', circa 2000

18k, circular nickel lever movement, 18 jewels, glucydur balance, champagne matte dial, roman numerals, secret Cartier signature at 7 o'clock, large horizontal rectangular water-resistant-type case, case, dial and movement signed, with 18k gold Cartier deployant buckle, accompanied by Cartier cardboard slipcase, leather-covered box, certificate and instructions.