The Tudor Black Bay Fifty-Eight was introduced at BaselWorld 2018. Compared to the original Black Bay the case size is reduced in both diameter as well as height, and it is powered by the self-winding MT5402 which was introduced simultaneously. Reference 79010SG-0001, added to the collection in 2021, has a 925 silver case paired with a taupe dial.
Watch our tour video about the TUDOR BLACK BAY 58 925 79010SG
Most dive watches are made of stainless steel, but this version of the Black Bay 58 takes a different approach. It swaps steel for a case made of 925 silver, an uncommon choice that changes both the look and feel of the watch on the wrist.
This edition blends heritage styling with materials that age uniquely. It offers a cooler tone, a lighter touch, and a new expression of the brand’s vintage dive series. If you’re looking for something familiar yet distinct in a sea of retro dive watches, this may be worth a closer look.
Let’s explore where it comes from, what sets it apart, and how it wears day to day.
The Black Bay Fifty-Eight line draws heavily from Tudor’s dive watch from 1958, the Oyster Prince Submariner ref. 7924. That model was the brand’s first 200-meter water-resistant diver, and it set the design tone that the modern BB58 family follows closely: a smaller 39mm case, no crown guards, and snowflake hands.
In 2021, Tudor introduced this silver model as part of a new wave of experimentation. Alongside gold and ceramic versions, it added a cooler-toned alternative to the collection. It was released quietly and sold exclusively through select Tudor boutiques, which makes it one of the lesser-seen models in the wild.
What makes it interesting is not just the material, but how that material behaves. Over time, the 925 silver alloy develops a natural patina, softening the edges and giving each piece a more lived-in appearance. That aging process makes every watch a little different, and that’s part of the charm.
The case measures 39mm across and 12.7mm thick, dimensions that stay true to the original Fifty-Eight silhouette. The 925 silver alloy has a satin finish that plays with the light, offering a muted glow that contrasts nicely against the grey tones of the bezel and dial.
Instead of pairing the case with a bracelet, Tudor fits this version with a grey fabric strap. It’s made by Julien Faure, a French company known for its heritage weaving techniques, and feels comfortable and lightweight. A silver buckle completes the fit and keeps the color scheme consistent from top to bottom.
Flip the watch over, and you’ll see a sapphire caseback, a rare feature in the BB58 lineup, which lets you view the COSC-certified movement inside.
Now, let’s zoom in on the dial, where this piece makes an even stronger visual impression.
The dial follows the classic Black Bay formula: applied hour markers, snowflake hands, and clean typography. But instead of black or blue, you get a warm grey gradient that shifts in tone depending on the lighting. The matte texture gives it a slightly aged look without leaning too far into faux vintage.
The bezel matches the dial with a muted grey insert and silver numerals. Like other BB58 models, it’s a 60-minute unidirectional dive bezel with a solid coin-edge grip.
One design choice worth pointing out is the lack of a date window, which keeps the dial symmetrical and in line with the original 1958 inspiration. Lume is applied to the hands and markers, offering good visibility in low light.
Overall, the dial is easy to read and pleasantly understated. Now let’s look at what powers it.
Inside the case is the Tudor Manufacture Caliber MT5400, a self-winding movement with a 70-hour power reserve and COSC chronometer certification.
It’s a variation of the MT5402, designed with a wider base to better fill out watches with a transparent sapphire caseback, like this one.
It features a silicon balance spring that helps it resist magnetic fields, which can interfere with timekeeping. Built for durability and consistent performance, the movement also includes a balance bridge and a free-sprung balance wheel, details that help keep it running accurately over time.
What sets this version apart on the wrist is its overall feel. It’s lighter than a steel Black Bay 58, thanks to the silver case and fabric strap. That makes it an easy daily wear, especially for those who prefer a slimmer, quieter watch.
The textile strap is breathable and flexible, which adds to the comfort. And because the watch sits low on the wrist, it fits well under cuffs or jackets.
As time goes on, the case slowly changes in color and character, giving the watch a more personal, lived-in look that becomes more unique with every wear. For collectors who enjoy seeing their watches evolve, this is a key appeal.
Now that we’ve covered how it feels and functions, here’s a quick reference table that summarizes the details:
| Category | Details |
| Case Diameter | 39mm |
| Case Height | 11.9 mm |
| Case Thickness | 12.7mm |
| Water Resistance | 200 meters (660 ft) |
| Case Material | 925 silver, satin finished |
| Bezel | Grey anodized aluminum and silver gilded markings and numerals, Unidirectional rotatable bezel with a 60-minute graduated disc |
| Crystal | Domed sapphire crystal |
| Crown | 925 silver screw-down, engraved with a Tudor rose |
| Caseback | Open caseback with a sapphire crystal |
| Dial | Grey, domed |
| Movement | Tudor Caliber MT5400 (COSC certified) |
| Power Reserve | Approximately 70 hours |
| Strap | Grey fabric strap with 925 silver buckle |
| Clasp | 925 silver buckle |
This Black Bay 58 reimagines a vintage diver through a fresh lens. It keeps the clean lines and wearable size of the BB58 series but changes the materials and mood. From the cool-toned dial and silver case to the comfortable strap and visible movement, everything about this model leans toward subtle distinction.
It’s a strong option for those who want a piece that feels classic but doesn’t blend in. And thanks to its comfortable profile and reliable movement, it makes for an excellent everyday companion.
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