This is a mid-1960s Vacheron Constantin Ref. 6394Q screw-back waterproof model, featuring the Cal. K1072/1 automatic date movement, crafted in 18k yellow gold. The screw-back waterproof case, designed by the renowned Wenger company, is reminiscent of the step-lug design seen in Patek Philippe’s Ref. 2551. Its elegant case form and the substantial feel characteristic of a screw-back design make it particularly striking even among Vacheron’s collections.
The dial showcases a simple yet refined design, with applied bar indices and bar-shaped hands, achieving a perfect balance with the distinctive case design. This exceptional timepiece is powered by the iconic Cal. K1072/1 automatic movement, which features a gold rotor, ruby bearings, and a Gyromax balance system.