This Swiss watchmaker Frédérique Constant has established a solid reputation for classical, in-house-manufactured mechanical watches that are great value for money. The 42mm Worldtimer Navy Blue is ideal for travellers who are constantly crossing time zones and need to know the hour around the world at a glance. Unlike many other world time complications, which depend on a pusher to change the city disc, all the functions of this watch can be manipulated through the crown. Once the desired city has been set at 12 o’clock, the internal discs are synchronised, offering you the time in 24 time zones. The 24-hour disc, divided into blue and white areas, will tell you whether it is day or night. The navy blue dial - the fashionable colour choice for watch dials - is decorated with an exceptionally detailed anthracite grey world map, highlighted with luminescent details to ensure accurate readings, even in the dark.