| The Rolex GMT and the Rolex Submariner fall into the | | | | uni-directional bezel in the Rolex Submariner is |
| professional line of watches. While the GMT is meant | | | | designed to help a diver measure the elapsed time |
| for the aviators, the Submariner was the world's first | | | | while diving. Before a diver gets enters the water, he |
| watch designed for diving. Both were introduced in | | | | needs to set the bezel so the triangle engraved on the |
| 1954 at the Basel Fair. | | | | bezel points at the current minute hand position. This |
| Similarities between the Rolex GMT and the Rolex | | | | will start counting the minutes while the diver descends. |
| Submariner | | | | Similarly, by resetting the position of the triangle again, |
| Apart from being professional Rolex watches and | | | | he can pace his ascent as well. Thus, by measuring |
| sharing the same launching year, there are other | | | | the elapsed time, the bezel ensures the safety of the |
| similarities in the current versions of the two models. | | | | diver.?On the other hand, the bi-directional rotating |
| Some of these include: | | | | bezel in the Rolex GMT helps the wearer to read the |
| 1. Standard case size of 40mm | | | | time in two different time zones simultaneously. Divided |
| 2. Self-winding mechanism | | | | into two equal parts, the time 6:00 to 18:00 represents |
| 3. Rotating bezel | | | | the day and the time 18:00 to 6:00 represents the night. |
| 4. A scratch-resistant synthetic sapphire crystal, which | | | | The special 24 hour hand is used to display the 24 |
| gives the two watches a slimmer look | | | | hour time frame on the bezel. The watch features an |
| 5. Triplock system providing another layer of protection | | | | independent hour hand, which can be set to a different |
| to the Oyster case. It features a triple gasket system | | | | time zone without adjusting the 24 hour hand and the |
| that screws down tightly onto the case tube and | | | | bezel. In addition, the "one-hour" jump feature enables |
| against the Oyster case | | | | the hour hand to jump one hour at a time without |
| 6. Available in 18k yellow gold, steel and Rolesor | | | | affecting the minute or second hand. This feature is |
| Besides these similarities, the option of black bezel with | | | | not present in the Submariner models. |
| black dial is also very popular in both these models. | | | | 2. The current Rolex GMT Models have a water |
| How is the Rolex GMT Different from the Rolex | | | | depth rating of 330 feet, while the Submariner models |
| Submariner? | | | | have a water depth rating of 300 meters or 1000 feet. |
| Rolex created these two models to meet different | | | | 3. All current Rolex GMT models sport a ceramic |
| professional needs. Some of the major aspects | | | | bezel, unlike the Submariner models. |
| where the watch models differ from each other are | | | | 4. The Rolex GMT models currently available offer |
| explained below: | | | | many jewelry embedded options such as |
| 1. The Rolex Submariner features a uni-directional | | | | diamond-paved dial, rotating bezel fitted with diamonds, |
| rotating bezel as opposed to the bi-directional bezel | | | | sapphires and rubies and even diamond fitted lugs. |
| found in the Rolex GMT watches. The functionality of | | | | Such jewelry options are not available in the |
| the bezels is different in the two models. The | | | | Submariner models. |