Brand Guides / Rolex / Rolex GMT-Master II
Reviewed by the Fine Watch Guide team · October 2026
The GMT-Master II tracks a second time zone with a 24-hour hand and rotating bezel, a design that began with the original GMT-Master of 1955 and its famous two-color bezel.
The GMT-Master began as a tool for airline crews in the 1950s and grew into one of the most collected Rolex families. The II added an independently set hour hand, which makes it the better traveler's watch, and the colorful bezels that define each version are often the first thing a buyer checks.
The original GMT-Master moves its 24-hour hand in step with the main hour hand, so the second time zone comes from turning the bezel. The GMT-Master II lets you jump the local hour hand on its own, which changed the movement and how the watch is set. A watchmaker needs to know which mechanism is in front of them, and vintage GMT-Masters bring the same originality concerns as any older sports Rolex.
Bezels are the other specialty. Aluminum inserts on older watches fade into colors collectors prize, while later ceramic two-color bezels resist fading entirely. Either way, a good watchmaker cleans and services the bezel mechanism without swapping an original insert.
The extra hand and its setting mechanism add parts to check during an overhaul, and a GMT that jumps hours erratically or slips when the crown is set needs a watchmaker familiar with the specific caliber. As with every Oyster, the crown and its tube are central to water resistance, so seals should be renewed and the case pressure-tested.
Jubilee and Oyster bracelets both stretch over years of wear. Bracelet specialists can tighten worn links, though many collectors accept some stretch on a vintage bracelet as part of its honest history.
Confirm the bezel and dial are correct for the reference, since swapped and aftermarket inserts are common, and check that the movement matches. On vintage GMT-Masters, look closely at the hands and lume for consistency, because mismatched service parts are one of the most frequent issues on older examples.
A recent service is worth money in the price, and an independent inspection before purchase is the easiest way to know what you're buying.
The GMT-Master II shows two time zones at once, and with the rotating 24-hour bezel, a third. The jumping local hour hand moves in one-hour steps without stopping the watch, so a traveler can change time zones on arrival while the 24-hour hand keeps home time. On modern calibers the date follows the local hour hand, forward or backward, which is the correct behavior and not a fault.
Most service visits for 'my GMT hand is wrong' turn out to be setting mistakes. Set the 24-hour hand to home time first, then jump the local hour hand to wherever you are. If the local hand starts slipping or refuses to click into its next position, that's a mechanical issue for a watchmaker, not a setting problem.
Older GMTs used aluminum bezel inserts in two-color combinations that earned nicknames such as Pepsi for red and blue, and those inserts fade over decades into softer shades collectors prize. Rolex moved the GMT-Master II to Cerachrom ceramic inserts in the mid 2000s, which hold their color and resist scratches but can crack if hit hard.
A cracked ceramic insert is a replacement job, and on a modern watch Rolex or a parts-account watchmaker can source the correct one. A faded aluminum insert on a vintage watch is a different decision, because the original insert often matters to the watch's value. Keep it with the watch even if you swap it for wear, and expect a buyer to ask whether the insert you're showing them is the one the watch left the factory with.
On a vintage GMT-Master, collectors look first at the bezel insert, the dial and the hands, then at the case. Original faded inserts, matching aged lume on the dial and hands, and a case that still has its factory edges all push value up. A replaced insert, a service dial or a heavily polished case pull it down, sometimes sharply.
Ask the seller what's been replaced and when. Many honest vintage GMTs have had parts changed during earlier factory services, and that's not fraud, but it should be reflected in the price. A specialist can tell you which parts are period-correct and which aren't, which is exactly the kind of fact worth having before you pay.
The II lets you set the local hour hand independently of the 24-hour hand, which makes changing time zones easier. The original reads a second zone mainly through the rotating bezel.
Not to collectors. Evenly faded original aluminum inserts are often more desirable than new ones. Keep the original with the watch even if you fit a replacement.
It usually points to wear or lubrication issues in the setting mechanism. A watchmaker who knows the caliber should look at it during service.
Many honest vintage watches have no papers. The watch itself, inspected by a specialist for correct dial, hands, bezel and movement, matters more than the documents.
Rolex GMT-Master II owners use Rolex specialists for servicing, authentication and restoration.
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