GMT (Greenwich Mean Time) watches and dive watches are both very popular types of timepieces, with each having a different purpose and its own style. When looking at the two, you might be wondering which type of watch would suit your lifestyle the best. Read on to learn all about the differences between dive and GMT watches so you can choose the right watch for you.
-
Waterbury Traditional GMT 39mm Stainless Steel Bracelet Watch39 mm Two-Tone/Stainless Steel$114.99
What is a GMT Watch?
A GMT watch is a timepiece originally developed for pilots and travelers to help them keep track of multiple time zones at once. They’re also known as dual time watches and are great for those who travel a lot, as you can set a ‘home’ time, leaving the hands free to track local time.
These watches feature a GMT complication which includes an additional GMT hand that circles the dial once every 24 hours. This hand works in conjunction with a 24-hour bezel—either fixed or rotating—allowing the wearer to read a second or even third time zone.
The Deepwater Reef 200 GMT 41mm Stainless Steel and Waterbury Traditional GMT 39mm Stainless Steel Bracelet Watch watches feature a bright red hand on their dial which can be set to another time zone, making reading the dual time easy.
What is a Dive Watch?
Dive watches are specifically designed for underwater use. To be considered a true dive watch, it must comply with ISO 6425 standards, which include specific requirements like water resistance of at least 100 meters, a unidirectional rotating bezel for tracking dive time, and highly legible luminous hands and markers. Other key features include a screw-down crown and case back for secure water resistance, as well as a rugged build to withstand high pressure underwater. These watches are trusted tools for divers and popular for their bold design and reliability.
True Dive Watches vs. Diver-Inspired Watches
While shopping for diving watches, you may have seen the term ‘diver-inspired watch’ instead. If you’re a professional or expert diver, it’s important to note that they are not the same.
A true dive watch meets strict ISO 6425 standards, ensuring it can perform reliably under demanding underwater conditions. In comparison, a dive-inspired watch mimics the style of a diving watch but might lack full water resistance or certified durability. While perfect for everyday wear, light swimming, or casual water use, dive-inspired models aren't built for deep-sea diving.
GMT vs Dive Watch - Key differences
GMT and Dive watches cater to different needs, so naturally there are many key differences between the two.
Primary function
GMT watches are designed to track multiple time zones, so they are ideal for frequent travelers, pilots, or anyone who is crossing different regions of the world. These watches feature a dedicated GMT hand and might use a 24-hour scale or bezel for easy reference.
On the other hand (or wrist), dive watches are purpose-built for underwater use. Their primary function is to track elapsed time during dives, using a 60-minute unidirectional bezel to ensure that timing can't accidentally be changed without your knowledge. They also feature easy-to-read luminous markers.
Water resistance
GMT watches are generally not designed for use under water, however, some designs may have higher water resistance than others.
As you would expect, diving watches are designed to be worn for long periods of time underwater and are specifically designed to be water resistant with screw-down crowns and case backs. For a watch that blends GMT functionality with reliable water resistance, the Timex Deepwater GMT watch is a strong combination of both types – keeping you on track for your diving goal while also keeping track of two time zones.
Durability and style
In terms of durability and style, dive watches lean towards more sporty and rugged designs, with bold details, luminous markers, and rubber or stainless-steel bracelets. GMT watches tend to have more variety – ranging from robust field watches like the Expedition GMT to dressier options like the Q Timex GMT. For daily wear, GMTs offer practical timekeeping, while dive watches are better suited for more outdoor ventures and active lifestyles (although they are becoming more popular to wear every day as well).
-
Deepwater Reef 200 GMT 41mm Stainless Steel Bracelet Watch41 mm Stainless Steel/Stainless Steel$309.00
How to Choose: GMT or Dive Watch
Because these two types of watches are so different, it can be difficult to choose between them when looking to add a new watch to your collection. You may want to consider your lifestyle and priorities, as well as personal preference, when trying to decide between a GMT or diving watch.
Do you travel a lot?
For frequent fliers and intrepid travelers who need to keep track of multiple time zones, a GMT watch is the more practical choice. The 24-hour scale and extra GMT hand make coordination easy, no matter where you are in the world.
Do you take part in a lot of water sports?
For diving, swimming, or outdoor use, a dive watch might be the better option for you. With higher water resistance, robust builds, and unidirectional timing bezels, they’re built to withstand water and harsh conditions.
What is your personal style like?
GMT watches usually offer a refined, urban look that works seamlessly for travel and business alike. Dive watches lean towards a more sporty and bold style, with large luminous markers for easy reference, and a classic tool watch aesthetic.
Will you use it every day or only on special/specific occasions?
You may also want to consider how often you’ll use your watch. Dive watches tend to be large and impressive with a bulkier case and a specific aesthetic that suits sports and active wear. GMTs on the other hand often have slimmer profiles making them more versatile for wearing every day. However, both styles come in various sizes so it’s well worth researching a variety of models and trying a few on to find the ideal size.
What is your budget like?
Both types of watches can be purchased at a range of price points.. Some models such as luxury dive watches can be considered more of an investment while others can be found at more accessible prices.
Timex GMT and Diver-Inspired Collections
Here at Timex, we offer a range of GMT watches and diver-inspired watches.
Our GMT watches feature a variety of styles from fun collab designs to more classic racing-style watches. For those who enjoy a diving-style watch but who don’t plan on wearing it while professionally diving, check out our range of diver-inspired watches. These watches boast the classic diving watch aesthetic so you can enjoy the look of a classic diving watch every day.
If you’re looking for a watch with dependable water resistance, our Deepwater collection features screw-down crowns and case backs, luminous markers, and easy-to-read diving bezels. For those who want to keep track of time both in the water and across time zones, the Timex Deepwater Reef watch delivers ‘dive-level’ performance with 200m water resistance alongside a GMT complication.
-
Marlin® Quartz GMT 40mm Stainless Steel Bracelet Watch40 mm Stainless Steel/Stainless Steel$229.00
Key Takeaway
Whether you’re a frequent traveler keeping track of multiple time zones or you love nothing more than diving into adventure, both GMT and dive watches offer unique advantages. The right choice comes down to your preferences, lifestyle, and personal style. With Timex, you don’t have to compromise – our range of watches offers reliable, stylish, and affordable options for every journey no matter if it’s on land, in the air, or in the sea.
