What watches do you think are cool? The "graphic" Worldtimers. The watches that display the time in any part of the world with a graphic globe. You can know at a glance what time it's in Mexico City, New York or Geneva.
Louis Cottier developed the concept of world time wristwatches as we know them today. He followed his father in researching the subject and developing the concept almost a hundred years ago. Cottier’s concept of "universal time", which was a display that displayed all times, found its home in 1932 with the Vacheron-Constantin 3372. Patek Philippe contacted the independent creator shortly after and in 1937 it was released in 515HU. The complication, which was first adopted by Patek Philippe, then spread to other large maisons and evolved into the modern nifty complication we know today.
There are many examples of multi-timezone watches that have been incredibly successful. These models, which were not the first to be mentioned when listing the most important complications in watchmaking, still enjoy a high level of prestige and renown. I remember a few worldtimers that are both contemporary and artistic: the Patek Philippe 5131, the Breguet Hora Mundi 571 7, or the Greubel Forsey GMT. The watches of Jaeger LeCoultre (Geophysic Tourbillon Universal Time), Vacheron-Constantin (Overseas World Time), Bovet 1822(Recital 22), Franck-Muller (Vanguard Worldtimer) and Omega (omega replica watches), among others, also deserve a mention, as they show how well-regarded this type is today despite the relatively low media coverage.
The above examples are expensive, but represent the pinnacle in multi-timezone haute chronologie. There are a few (in fact, very few) graphic "multi-timezoners", which are more affordable. Rolex GMT Master Replica is one brand that puts world timers at the forefront.
Rolex GMT Master Replica introduced the Heritage Spirit Orbis Terrarum at the 2015 Geneva Watch Fair. The watch, priced just over $5,000 USD, features multiple time zones in a 41 mm stainless steel case powered by the MB 29,20 self-winding caliber (www.rabanwatch.com). The function has been in one collection or another since then and is now the most accessible time zone on the market. This year, Rolex GMT Master Replica's beautiful worldtimer has taken another step forward with the launch of the Star Legacy Orbis Terrarum. (They should stop switching it around between collections though).
Orbis Terrarum is one of the most popular multi-time zone watch on the market. This is due to its detailed and informative dial. This new version includes a new case and a projection of the northern half of the globe, as seen from above the North Pole. It also features new engravings and graphics, which highlight the timepiece's usefulness.