The Tool Desk
Outbyte PC Repair FREERepair Windows errors before they cause bigger problemsFix Now →Outbyte Driver Updater FREEFix the driver behind crashes, sound loss and screen glitchesFind Drivers →The YEMA Navygraf Marine Nationale GMT is a compact automatic watch with a 24-hour GMT display, a 300 m water-resistance rating and dimensions that suit wrists put off by larger divers. Its GMT hand is independently settable, making it a caller—or office—GMT rather than a traveler GMT. YEMA lists it as reference YNAV23MN-AMS; prices and strap packages differ by market, so check the specific regional listing before buying.
What is the Navygraf Marine Nationale GMT?
This is a distinct automatic GMT model, not the similarly named Navygraf quartz or the later CMM.10 diver. YEMA says it was designed and developed with the French Navy, and that its design takes inspiration from the 1970s Navygraf II. The brand describes it as a tool watch; that description is marketing language, not a result of independent durability testing.
The stainless-steel case frames a blue dial with polished applied markers and yellow accents on the seconds and GMT hands. A bidirectional sapphire-insert bezel carries luminous 24-hour markings. The Marine Nationale name and emblem appear on the watch.
How does the GMT function work?
The automatic YEMA3000 movement has an independently settable GMT hand. Fratello Watches reviewer Jorg Weppelink characterizes this setup as a caller or office GMT: the GMT hand can be set separately to track a second time zone, while the local hour hand is not the independently jumping hand found on a traveler or flyer GMT.
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#1 Best Overall
- DURABLE PERFORMANCE – Our most innovative dive-style watch is tested to 100 meters of water resistance and tracks multiple time zones. The Fossil Blue GMT also features a rotating 24-hr bezel, bold oversized crown, and lume indices for easy readability. Made for any adventure. *Not ISO-certified.
- ALL-DAY DURABILITY: 46mm case, 24mm band width, hardened mineral crystal lens resists scratches, GMT movement with GMT analog display echoing craftsmanship of fine watches, men's watch, imported.
- LARGE DIAL STYLE: Round silver and blue stainless steel case with a blue sunray dial and white accents, an ideal analog watch design inspired by classic big face watches.
- DURABLE STEEL BAND: Silver stainless steel bracelet for men's watch and big face watches, secure fold-over clasp; removable links for customized fit; interchangeable with all 24mm Fossil straps.
- ALL-DAY WATER DEFENSE – Water Resistant up to 100m (330ft): suitable for bathing, swimming or snorkeling, but is not resistant enough to withstand scuba diving; 10 ATM, ideal for those who rotate watches
The bezel adds another way to interpret the display. YEMA says the GMT hand and rotating 24-hour bezel can be used to read up to three time zones. The bezel does not add a third hand or an independent time display; it shifts the reference for reading the existing GMT hand.
Specifications and fit
| Specification | YEMA Navygraf Marine Nationale GMT |
|---|---|
| Reference | YNAV23MN-AMS |
| Case material | 316L stainless steel |
| Case diameter | 38.5 mm |
| Thickness | 12 mm |
| Lug-to-lug | 46 mm |
| Lug spacing | 19 mm |
| Movement | Automatic YEMA3000 GMT; 28,800 vibrations per hour |
| Power reserve | 42 hours, according to YEMA |
| Daily rate | ±10 seconds per day, a figure stated by YEMA |
| Bezel | Bidirectional, 120 clicks, 24-hour graduation, sapphire insert |
| Water resistance | 30 bar / 300 m / 990 ft, as rated by YEMA |
At 38.5 mm across and 46 mm lug-to-lug, the case is compact on paper compared with many contemporary dive-style watches. Its 12 mm thickness and 19 mm lug spacing are useful fit details to consider alongside diameter; wrist shape, strap choice and personal preference still affect how it wears.
What is it like to wear?
In a hands-on review, Fratello’s Jorg Weppelink said he wore the watch for several days and found it comfortable. He liked the updated dial and its blue, yellow and white color palette, and praised the H-link bracelet’s appearance and comfort. He also described the clasp’s safety lock as flimsy and rattly. These are one reviewer’s observations, not a broader reliability assessment.
Rank #2
- DURABLE PERFORMANCE – The legacy of Fossil Blue continues, now in a special GMT edition. Ultimate travel accessory features an easy-to-read GMT hand for coast-to-coast time at a glance. It has a black sunray dial, stainless steel bracelet, tested 100 m water resistance *Not ISO certified
- ALL-DAY DURABILITY: 46mm case, 24mm lug width, mineral crystal lens resists scratches, accurate Quartz movement with GMT analog display echoing craftsmanship of fine watches, men's watch, imported
- LARGE DIAL STYLE: Round stainless steel case with a black and red satin dial, silver accents, an ideal analog watch design inspired by classic big face watches
- DURABLE STEEL BAND: Silver stainless steel bracelet for mens watch and big face watches, secure fold-over clasp; removable links for customized fit; interchangeable with all 24mm Fossil straps
- ALL-DAY WATER DEFENSE – Water Resistant up to 100m (330ft): suitable for bathing, swimming or snorkeling, but is not resistant enough to withstand scuba diving; 10 ATM watch ideal for those who rotate watches
Bracelet, strap and package options
YEMA’s US product page presents steel or FKM options and describes two straps plus a travel case; the official Marine Nationale boutique lists a choice between a steel bracelet and the official elastic Marine Nationale strap. The exact included straps and accessories therefore depend on the market and listing. Confirm the selected configuration with the seller before ordering. The listed lug spacing is 19 mm, but that alone does not establish that every generic strap will fit the case or its attachment system.
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Price and availability
When accessed in 2026, YEMA’s US product page displayed US$1,349. The official Marine Nationale boutique displayed €1,349 and marked the watch out of stock. These are market-specific page snapshots, not a guaranteed live price or indication of worldwide stock. Taxes, shipping and availability may differ; verify them on the relevant seller’s page.
For context only, Fratello’s 2023 launch coverage listed preorder prices of €1,349 for the bracelet configuration with an elastic strap and €1,379 for the FKM-rubber configuration with an elastic strap. Those launch-era prices are not current quotations.
Rank #3
- Pagani Design 1662 Men's Watch: Pagani Design GMT features a black dial, two-tone ceramic bezel, independent 24-hour hand and 24-hour scale bidirectional rotating outer ring, which can display the time in two time zones at the same time: the date display on the simple design dial creates a simple, high-quality appearance. (Note that the bezel of the red series is not made of ceramic)
- Automatic watch: Equipped with an automatic movement, it mainly transmits kinetic energy through the natural movement of the wearer's wrist. It is self-winding, durable, and has a long kinetic energy reserve without the need for batteries.
- Clear reading: Like all professional watches, the GMT watch is equipped with a self-luminous display to ensure excellent readability anywhere, even in the dark. The large hands and simple hour markers - triangle, circle, rectangle - are filled with luminous material, emitting a long-lasting glow.
- 100 meters waterproof: The watch is waterproof to a depth of 100 meters. Do not put the watch in a hot bath. Waterproof for daily use, cold shower, hand washing, rain, splashing water, cold shower are no problem. It is not recommended to wear the watch in a hot bath. Water vapor will corrode the waterproof rubber ring, and most watches do not have water vapor protection.
- Satisfaction Guarantee: We will replace your product within 60 days without any questions; Pagani watch quality issues warranty for 1 year, 24-hour customer service, if you encounter any quality problems, please contact us immediately and we will do our best to solve the problem.
Is it worth buying?
The strongest case for the Navygraf GMT is its combination of a relatively compact 38.5 mm case, a 24-hour bezel, an automatic GMT movement and a 300 m rating published by YEMA. Its independently settable GMT hand is better suited to tracking another time zone while keeping local time fixed than to the frequent local-hour adjustments that define a traveler GMT. Buyers who need the latter should make that distinction a priority.
The rating is a manufacturer specification, not an independently verified water test, and the available hands-on account is one reviewer’s short-term experience rather than evidence about long-term reliability or service. For a purchase decision, weigh the desired GMT behavior and fit against the current regional price, strap package and return terms. YEMA’s US page stated a two-year international warranty and a 14-day return window when accessed; seller terms can vary by location or change.
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Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
