The Girard-Perregaux Girard Perregaux Cat's EyeWorldtimer Moon Phase 18K White Gold & Diamonds Lady's Watch (Ref. 80491WG) is a luxury mechanical wristwatch. The case measures 30 x 35 mm. On the secondary market, the Girard Perregaux Cat's EyeWorldtimer Moon Phase 18K White Gold & Diamonds Lady's Watch averages $10,500 across 1 active listing. When buying pre-owned, check condition grade, box and papers (typically a 10–20% premium), service history, and originality of dial and hands. Use the listings and price history on this page to benchmark fair market value.