vacheron constantin round 6378q wg silver dial Panda Dial It is the last model

It is the last model to be equipped with a plastic bracelet

the Blue Submariner is a combination of stainless steel and gold (called "Roresol" in Rolex)

The case structure is not a screw back but a one-piece case

but the size is 2mm larger

Since it is a quartz watch

vacheron constantin round 6378q wg silver dial Panda Dial It is the last modelSpecifications Brand Vacheron ConstantinModel RoundReference 6378QYear 1960sMovement Automatic Cal. K1072Case 35mmMaterial 18K White GoldBracelet Black Leather StrapIncludes Watch Only Box Papers No NotesThe watch has been completely serviced by our watchmaker recently Warranty1 year Mechanical Warranty by us ShippingGlobal shipping via DHL Express with full insurance Description 1755 Ref. 6378Q1960 18K35mm 6069122 Cal. K1072 (Cal. K2072) 18K 1