The Monaco V4 is a Areally important piece of TAG Heuer history. It marked the beginning of the "new" TAG Heuer - TAG Heuer the manufacture. The concept of the V4 was introduced back in 2004, three years after the brand was acquired by LVMH and Jean-Christophe Babin was given brand control. Behind the development of the V caliber was Jean-François Ruchonnet (of the Cabestan Winch Vertical Tourbillon) with support from Philippe Dufour - yes THAT Philippe Dufour.
The V4 was set into production in 2009 in very limited quantities - available only in platinum and rose gold.
But, in a recent meeting at TAG HQ in La Chaux de Fonds with Guy Semon, head of R&D, we were shown the only existing Monaco V4 produced in stainless steel. The watch belongs to Semon himself and is the original prototype of the production model. Semon has been wearing it regularly for the past four years. This prototype also has a true prototype serial number: "No. xxx/xxx". How bad ass is that?