1950s Vacheron Constantin Historique Chronograph 18k Yellow Gold Silvered Dial 4178 with Box Brand_Universal Genève The white dial with "T

The white dial with "T Swiss Made T" markings is notable because it signifies the use of tritium

This example is a prototype made by a student and labelled "École d'horlogerie de Genève" as well as certified COSC

Its crisp white dial

3506 features a 34 mm stainless steel case

An unpolished 2000s Audemars Piguet Royal Oak Automatic Annual Calendar in stainless steel reference 25920ST with a fantastic blue dial in perfect condition

1950s Vacheron Constantin Historique Chronograph 18k Yellow Gold Silvered Dial 4178 with Box Brand_Universal Genève The white dial with "TThis is an exceptionally well preserved and very rare 18k yellow gold Circa 1950s Vacheron Constantin "Historique Chronograph" dress watch reference 4178, featuring a fantastic aged silvered dial with both applied arrow baton indexes and Arabic numerals at 12 and 6. This fantastic example comes with its original bracelet, original 18k yellow gold pin buckle and Original Vacheron Constantin leather box. The 1950s Vacheron Constantin Chronograph