The Girard-Perregaux Girard PerregauxChrono Hawk Sea Hawk Chronograph 49970-11-431-11A Steel Bracelet (Ref. 49970-11-431-11A) is a Steel-cased luxury mechanical wristwatch. The case measures 44mm mm. The dial is Blue. Powered by a Automatic movement. On the secondary market, the Girard PerregauxChrono Hawk Sea Hawk Chronograph 49970-11-431-11A Steel Bracelet averages $7,900 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.