Deployant
Review: the new Longines Spirit Zulu Time
The GMT function is likely the most useful complication on mechanical timepieces, right after the date. While some may say the perpetual calendar is useful too, the effort to keep it running all the time or adjusting the date everytime to keep it updated is too much of a hassle. Chronographs on the other hand are not useful either for day to day tasks. The GMT however, is has many modern corporate slave applications, especially for those who travel or work with teams in different timezones. It is also the best multi timezone configuration that does not throw errors like the world timer, which becomes erroneous under daylight saving cycles and are also particularly hard to read.
