The Vacheron Constantin Overseas Ultra-Thin Perpetual Calendar ref. 4300V was first released in 2018 and this year ref. 4300V/000R-B5094 was added. This reference sporting a gorgeous blue dial brings this watch another notch up. The watch is fitted with a slender case in 18K 5N pink gold measuring just 8.1 mm in thickness and powered by a new calibre 1120 QP/1. This new Overseas Ultra-Thin Perpetual Calendar is simply stunning in the metal and is powered by one of the slimmest movements on the market.