Some watches are easy to understand at a glance. The Yema Navygraf Heritage is more deceptive than that.
Its 39 mm case and balanced proportions suggest something familiar and classically sized rather than overtly bold. But once it’s on the wrist, the watch reveals a far stronger personality than those restrained dimensions imply. The sharp contrast between the dark dial and the exclamation point hour markers gives it immediate presence, while the bright yellow hands inject a bold, unmistakable streak of character that sets it apart from more conservative heritage divers.
That contrast is what makes the Navygraf Heritage interesting. Beneath its vintage-inspired exterior lies a watch that’s far from quiet: visually assertive, highly legible, and full of purposeful design choices that give it identity beyond nostalgia.
A brief introduction: the diver behind the reissue
The Navygraf occupies an important place in Yema’s catalog. While the Superman tends to dominate discussions about the brand, the Navygraf has long represented Yema’s more understated, military-adjacent dive-watch lineage, rooted in the company’s history of supplying professional-grade watches to French armed forces units.
This modern Heritage edition isn’t a nostalgic caricature. It’s a careful reworking of the original concept: compact, functional, and visually faithful without becoming costume-like. That distinction matters because many heritage divers today lean too hard into faux-aged theatrics. The Navygraf avoids that trap.
The Dial
The dial is where the Navygraf’s personality becomes unmistakable.
At first glance, it seems almost austere: matte black or dark grey base, large hour markers, minimal text, strong contrast. But the more time you spend with it, the more thoughtful it feels. The bright yellow handset is the defining element: playful, highly legible, and unmistakably Navygraf. It injects energy into what would otherwise be an extremely restrained dial.
What makes the dial work so well is what Yema chooses not to do.
There’s no exaggerated faux patina, no distressed printing, no overwrought “aged” styling. The lume tone is warm, yes, but restrained enough that it reads as natural rather than theatrical. The watch feels closer to a well-preserved NOS vintage diver than a modern brand’s attempt to imitate one.
The negative space is equally important. Although the Navygraf includes the expected functional text, the dial never feels crowded or weighed down by branding clutter.
The printing is restrained and carefully balanced, leaving ample open space for the design to breathe. That measured layout gives the dial clarity and rhythm, allowing the bold markers and yellow hands to remain the visual focus without distraction.
The Case
On paper, the dimensions sound conventional: 39mm diameter, roughly 46mm lug-to-lug, and around 12mm thick, including the crystal.
On the wrist, it wears better than those numbers suggest.
This is one of the Navygraf’s strongest achievements. Many sub-40mm divers in the 12mm range can feel vertically chunky; thick slabs masquerading as compact watches. The Navygraf doesn’t. The mid-case architecture disguises height exceptionally well, and as a result, it wears noticeably thinner than expected.
The brushed finishing reinforces its tool-watch identity, while polished chamfers along the case edges prevent it from feeling flat or utilitarian. There’s enough contrast here to create visual depth without compromising the watch’s purposeful character.
The bezel is particularly well judged. Its width feels proportionate to the case, neither too broad nor too narrow, and the vintage-style numerals look natural within the overall design rather than forced for effect.
The glossy black epoxy bezel insert is an important part of that balance. Compared with ceramic, it has a softer, warmer appearance, and the way it reflects light gives the bezel more visual depth.
One detail I especially like is the relationship between the bezel, dial, and crystal. The double-domed hesalite crystal can seem almost invisible when viewed straight on, as if there’s no crystal there at all.
Unless the light catches it from a certain angle, it disappears into the design. That effect makes it surprisingly difficult to tell where the dial ends and the bezel begins, creating a seamless visual transition that gives the front of the watch a fluid, cohesive look.
The choice of hesalite instead of sapphire won’t suit everyone. Sapphire is harder and far more scratch-resistant, but hesalite gives the watch a softer optical character that fits the vintage design far better. Light passes through it with a gentler diffusion, adding warmth and slight distortion that would be lost with sapphire.
The Movement
Historically, the Navygraf’s most contentious topic has been its movement.
Earlier versions using Yema’s MBP1000 / Yema2000 in-house calibers generated sharply divided reactions. Some owners appreciated the romantic appeal of a French-developed proprietary movement, while others criticized its long-term reliability, inconsistent regulation, and unclear manufacturing transparency. That debate has followed Yema for years and has often overshadowed the strengths of the watches themselves.
The newer Sellita SW200-powered Navygraf Heritage changes that conversation in a meaningful way, and, in many respects, for the better.
The SW200 lacks the romance of an in-house caliber, but it brings something arguably more valuable in a practical dive watch: reliability, familiarity, and universal serviceability. Any competent independent watchmaker can regulate or service it. Parts availability is widespread. Performance is predictable.
For a watch built around everyday usability rather than horological experimentation, that makes perfect sense.
In this particular example, the movement performs exactly as you’d hope. On my timegrapher, it produced an amplitude of 303 degrees, ran at +4 seconds per day, and showed no measurable beat error at all.
The Bracelet
The bracelet is built with the same utilitarian mindset as the rest of the watch: robust, functional, and clearly designed for durability rather than refinement.
Its solid construction gives it a reassuring sense of substance on the wrist, and the finishing is consistent with the case, helping the Navygraf feel cohesive as a complete package.
The gradual taper improves comfort and prevents the bracelet from feeling overly heavy or cumbersome during daily wear. Personally, I find it comfortable on the wrist, with a secure fit that suits the watch’s balanced proportions well.
Where the bracelet falls slightly short is in its finer details. While it feels sturdy overall, the clasp lacks the same level of refinement as the case and bezel and often feels like the least premium component in hand.
Some owners have reported minor rattling or occasional hair-pulling on earlier versions, though I have experienced neither on this example. Mine feels solid in use, with no noticeable rattle and no tendency to catch hairs.
The inclusion of a diver’s extension is practical and welcome, but overall, the bracelet is best described as dependable rather than exceptional: entirely fit for purpose, though not the standout feature of the watch.
The Final Verdict
The Navygraf Heritage succeeds because it understands exactly what kind of watch it wants to be. It doesn’t chase modern excess, nor does it rely on nostalgia as a gimmick. Instead, it delivers a coherent and thoughtfully judged take on the vintage diver formula, one that feels authentic in design, balanced in proportion, and distinctive enough to stand apart in a crowded category.
Its strongest qualities lie in its proportions, its visual identity, and the clarity of its design.
The case feels balanced on the wrist; the dial stands out with its bold yellow hands and strong contrast; and the hesalite crystal gives the watch a softer, warmer appearance than sapphire would.
The move to the Sellita SW200 also makes the Navygraf easier to recommend than earlier Yema models, removing much of the uncertainty that once surrounded the brand’s calibres. That stands in contrast to watches like the Yema Wristmaster Slim CMM.20, where the in-house micro-rotor movement is the main point of interest.
That doesn’t mean it’s flawless. The bracelet, while solid and dependable, lacks the same level of refinement as the case.
Despite that, the Navygraf Heritage makes a strong impression. It’s the kind of watch that grows on you the more time you spend with it.
Tecnical specs
- Diameter: 39mm
- Lug to lug: 46mm
- Thickness: 12mm, including the crystal
- Case material: Vertical brushed 316L stainless steel with polished bevel
- Crystal: Hesalite, double-domed
- Water resistance: 200m/20ATM/20bar
- Movement: Sellita SW200, 28800 A/h, power reserve circa 38h (as stated by Yema)
- Bracelet: Stainless Steel 316L with vertical-brushed effect. Double security folding clasp with diving extension and YEMA logo
- Lume: Grade A Super-LumiNova (green glow)
- Price: 990 euros (on the Yema website)
