Vacheron Constantin have released a new watch as part of their Overseas collection. The Overseas Perpetual Calendar Chronograph is the first time a perpetual calendar and chronograph complication has been combined in an Overseas collection watch. The watch uses the Vacheron Constantin Calibre 1136 QP movement housed in a stainless steel case with a titanium bezel. Only eighty watches will be made and they will be available exclusively from Vacheron Constantin stores.