Tudor Black Bay 54 Blue 79000B: A Vivid Compact Diver for 2026
Tudor Black Bay 54 Blue: The Compact 37mm Diver Gets a Vivid New Colour
Tudor has expanded its smallest and most vintage-inspired Black Bay diver with a striking new blue dial and bezel. The Black Bay 54 Blue, reference 79000B, was unveiled at Watches and Wonders Geneva 2026 and brings a vivid "Tudor Blue" colourway to the 37mm case that has become a favourite among enthusiasts seeking a more compact dive watch. According to Monochrome Watches, this is "not a redesign per se, but rather another take on a format that already works."
Vintage-Inspired Dimensions
The Black Bay 54 was introduced in 2023 as the smallest model in the Black Bay family, inspired by the Oyster Prince Submariner reference 7922 from the early 1950s. The 37mm case measures just 11.24mm thick with a 46mm lug-to-lug, making it one of the most wearable dive watches on the market. The clean bezel design — devoid of the small minute graduations found on the Submariner or other Black Bay models — gives the watch a more relaxed, less tool-oriented appearance.
The new blue dial features a satin radial-brushed finish on a lightly domed surface. The colour is described as saturated and vivid, sometimes appearing almost purple depending on the light. Applied hour markers and snowflake hands carry off-white Super-LumiNova, while the gilt-printed minute track adds warmth to the cool blue palette.
Technical Specifications
| Specification | Detail |
|---|---|
| Case | 37mm x 11.24mm, stainless steel |
| Dial | Blue, satin radial-brushed, domed |
| Bezel | Blue aluminium insert, 60-minute scale |
| Movement | Calibre MT5400 (COSC-certified) |
| Power Reserve | 70 hours |
| Water Resistance | 200m |
| Bracelet Options | Steel bracelet or rubber strap |
| Reference | 79000B |
The manufacture calibre MT5400, produced by Kenissi, is COSC-certified with a silicon balance spring for magnetic resistance and a stop-seconds function for precise time setting. It operates at 28,800 vibrations/hour with a 70-hour power reserve.
Pricing and Availability
The Tudor Black Bay 54 Blue is available immediately as part of the permanent collection:
- CHF 3,650 / EUR 4,090 — rubber strap
- CHF 3,850 / EUR 4,320 — steel bracelet
Both options feature Tudor's T-Fit micro-adjustable folding clasp for on-the-fly comfort adjustments.
Frequently Asked Questions
How does the BB54 Blue differ from the BB58 Blue?
The BB54 is 2mm smaller (37mm vs 39mm), thinner (11.24mm vs ~12mm), and has no date display. The bezel design is also cleaner, lacking the minute graduations found on the BB58. The blue tones may also differ slightly between the two models.
Is the blue dial "Tudor Blue" the same as the brand's heritage blue?
The colour is described as a vivid, saturated blue that shifts in tone under different lighting. Some observers have compared it more closely to the Lagoon Blue than a traditional Tudor heritage blue, noting it can appear almost purple in certain conditions.
Does the BB54 have a date function?
No, the Black Bay 54 is a time-only watch with no date display, preserving its clean, vintage-inspired aesthetic.
According to Monochrome Watches, the BB54 Blue "changes the mood of the watch" without altering what makes it work. For more details, visit tudorwatch.com.
Related reading: Best Small Dive Watches Under $5,000: Our Top Picks