A stunning ZRC Grands Fonds Heritage Spirit 1964 — one of the most authentic French dive watches ever made, directly inspired by the original 1964 model issued to the French Navy. This is the Heritage Spirit edition: limited production, featuring the iconic domed crystal, a thicker and more robust case profile than most modern dive watches, and the original ZRC crown and dial typography — details that carry decades of French naval history. The watch’s most obvious unique feature is the crown at 6, with a mechanism to prevent wearing it when the crown isn’t screwed in all the way. The movement is specifically regulated and modified for extreme conditions — shock-proofed and adjusted to withstand the stresses of professional deep diving. Tested to an extraordinary 1500 metres water resistance, this is not a dress watch playing at being a diver. It is the real thing. The bold Arabic numerals and striking dial layout ensure exceptional legibility, true to its professional diving roots. Already celebrated by collectors as a genuine piece of French horological heritage, the ZRC Grands Fonds remains one of the most underrated yet consistently appreciating watches on the market — a rare watch you can actually wear. Offered in very good condition, running with sharp precision, complete full set. The case, bezel, dial, and hands are like none other. Just look at it!