Have you ever landed overseas and suddenly lost track of the time back home? Perhaps your phone battery ran out, or your signal became confused due to jet lag. There is an easy mechanical solution to that problem. An automatic GMT watch shows you two different time zones simultaneously without requiring batteries or mobile applications. In this article, you will learn about the complication mechanism, the importance of self-winding watches for business trips and jet lag, the

You arrive in Tokyo at 2 am local time, your phone is dead, and the gate agent is speaking to a connection in a language you hardly understand. Do you really want to calculate the time in your head or just glance at your wristwatch to see home time and local time simultaneously? That moment of decision is the reason why travelers continue to be attracted by the GMT complication in 2026. This isn't about getting one more beautiful dial for your collection. It is about selectin