True GMT watches under $10,000 are a fairly small family; two other options are the NOMOS Zürich Weltzeit, and of course, the GMT Master II from Rolex. The NOMOS is the least expensive of the three, at $6,100. Setting the hour hand is done with a pusher at 2:00, which is synchronized with a city ring; this does not move on its own and acts just as a reference for the local time zone, so while the Weltzeit is a true GMT complication, it's not a world timer, which it superficially resembles. Home time on the Weltzeit is read off a 24-hour disk. Other than the setting system, the biggest difference between the Weltzeit and the GMT Master II or Grand Seiko, is that the Weltzeit doesn't show the date. On a strap, it's a more formal watch than the Grand Seiko or GMT-Master II, and has an in-house automatic movement.