The Monaco V4 — against the expectations of many in the watch world — became a commercial product in 2009, after years of research to overcome the inherent difficulty in making belts that were both thin enough and strong enough to do the work of the gears they were replacing. Since its debut, more than 400 Monaco V4 watches have been sold worldwide. According to TAG Heuer’s director of research Guy Semon, whom we spoke with at Baselworld, subsequent TAG Heuer watches with high-tech complications, such as the Mikrograph and Mikrogirder, could not have existed without the V4. The original Monaco V4 has since been released in other editions, including in rose gold, titanium, platinum and ceramic.
The TAG Heuer Monaco V4 Tourbillon has a titanium case, with a black titanium carbide coating, that is slightly larger than that of the original V4, at 41 mm. It will be be delivered on a black alligator strap with a push-button folding clasp of the same material as the case. Semon assures us that this is not a concept watch; it is planned to go to market this year, with an estimated price of 150,000 Swiss francs.