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Repair Windows errors before they cause bigger problemsFix Now →Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Clear out junk files and repair common Windows errorsFree Scan →The TUDOR Black Bay 54 M79000N-0002 is the smaller, less expensive of these two rubber-strap configurations; the Breitling Superocean Heritage B31 Automatic 40 AB3110241B1S1 adds a date display and a longer stated power reserve. Both are rated to 200 m, so the practical choice comes down first to size and design, then to price and the features you prefer.
Which references are being compared?
“Black Bay 54” and “Superocean Heritage B31” each cover a family of configurations. This comparison is specific to the TUDOR Black Bay 54 M79000N-0002, with a black rubber strap and T-fit clasp, and the Breitling Superocean Heritage B31 Automatic 40 AB3110241B1S1, with a black rubber strap and folding clasp. Other sizes, straps, and reference numbers may have different specifications or prices.
| # | Preview | Product | Price | |
|---|---|---|---|---|
| 1 |
|
Tudor Black Bay 54 Automatic Chronometer Black Dial Men's Watch M79000N-0001 | $4,619.99 | Buy on Amazon |
| 2 |
|
Tudor Heritage Black Bay GMT Stainless Steel Automatic Mens Watch M79830RB-0001 | $4,650.00 | Buy on Amazon |
| 3 |
|
Tudor GMT 58 Black Bay | $5,449.98 | Buy on Amazon |
| 4 |
|
Tudor Black Bay Fifty Eight Automatic Chronometer Blue Dial Men's Watch M79030b-0001 | $4,912.86 | Buy on Amazon |
| 5 |
|
Tudor | $4,475.00 | Buy on Amazon |
This is a comparison of manufacturer-published specifications and prices, not a hands-on review or independent assessment of timing, durability, or diving performance.
How do the specifications compare?
| Specification | TUDOR Black Bay 54 M79000N-0002 | Breitling Superocean Heritage B31 AB3110241B1S1 |
|---|---|---|
| Case diameter | 37 mm | 40 mm |
| Case thickness | 11.2 mm | 11.73 mm |
| Water resistance | 200 m / 660 ft | 200 m / 660 ft |
| Movement | Manufacture Calibre MT5400, automatic, COSC | Manufacture Breitling B31, self-winding mechanical; certification not stated in the cited technical data |
| Stated power reserve | Approximately 70 hours | Approximately 78 hours |
| Display | Time only; no date aperture listed | Date at six o’clock, identified in Breitling’s product story |
| Bezel | Unidirectional 60-minute bezel with aluminum insert | Unidirectional ratcheted bezel; Breitling describes a ceramic-inlaid bezel for the collection |
| Strap and clasp | Black rubber strap with T-fit clasp | Black rubber strap with folding clasp |
| Published warranty headline | Five-year transferable guarantee; no registration or periodic maintenance checks required | Five-year international warranty, with an extension of up to three years available through online registration |
The published figures make the Black Bay 54 3 mm smaller across and 0.53 mm thinner. Breitling states about eight more hours of power reserve. Those are specification differences, not evidence that one watch keeps better time or wears better.
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#1 Best Overall
- Tudor Black Bay 54 Automatic Chronometer Black Dial Men's Watch M79000N-0001
How do they differ on the wrist?
The 37 mm Black Bay 54 is the more compact starting point; the Breitling’s 40 mm case presents a larger footprint. Diameter and thickness do not determine fit by themselves. Neither cited product page supplies a comparable lug-to-lug measurement, and wrist shape, strap fit, and case proportions affect how a watch feels. Try both on if possible rather than relying on diameter alone.
Their layouts also make different choices. TUDOR lists the Black Bay 54 without a date aperture, giving it a time-only display. Breitling’s product story places the date at six o’clock on the B31. The bezel inserts differ too: aluminum on this TUDOR reference, while Breitling describes a ceramic-inlaid bezel for the collection. The material distinction does not establish comparative scratch resistance.
Rank #2
- 41mm steel case with polished and satin finish
- Bidirectional rotatable bezel in steel with 24-hour graduated anodised aluminium disc
- Self-winding mechanical movement with 70 hour power reserve
What do the prices mean?
TUDOR lists a US suggested retail price of $4,475 for the M79000N-0002. Breitling’s Barbados English product page displays USD 6,500 for the AB3110241B1S1. The displayed figures differ by $2,025, but they are not a tax- and market-matched quote: the TUDOR figure is US suggested retail, while the Breitling figure is shown on a Barbados-market page. Check the price, taxes, and availability in your own market before comparing offers. TUDOR notes that prices and models can change.
What do the movement and water-resistance specifications establish?
TUDOR identifies the MT5400 as a COSC-certified manufacture caliber and gives an approximately 70-hour reserve. Breitling identifies its movement as the manufacture B31 and states approximately 78 hours. Its cited technical data does not establish COSC certification, so the available descriptions do not support a certification-equivalence claim.
Rank #3
- Tudor Black Bay 58 GMT "Coke" Automatic 39mm Black Dial Men's Watch M7939G1A0NRU-0001
Both references carry a stated 200 m / 660 ft water-resistance rating. That shared figure is not a guarantee of suitability for every dive or use. Follow the watch’s manual and care guidance for operating limits and maintenance.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How do the designs and brand histories differ?
TUDOR describes the Black Bay 54 as a 37 mm steel watch with a black dial, domed sapphire crystal, unidirectional 60-minute bezel, and MT5400 movement. The brand’s press specifications corroborate the model’s technical details in its Black Bay 54 specification sheet.
Rank #4
- Tudor Black Bay Fifty Eight Automatic Chronometer Blue Dial Men's Watch M79030b-0001
Breitling dates the Superocean Heritage line to 1957 and describes its design language through spear-and-arrow hands and a style intended to move from sea to waterfront. It calls the B31 its first exclusive three-hand manufacture caliber. These are Breitling’s descriptions of its history and design positioning, not independent evaluations.
Quick Recap
Best Value
- Tudor Black Bay 54 Automatic Chronometer Black Dial Men's Watch M79000N-0002
Which one should you choose?
- Choose the Black Bay 54 as the better fit for your priorities if you want the smaller case, a time-only dial, the T-fit rubber-strap clasp, or the lower of the two displayed market prices.
- Choose the Superocean Heritage B31 as the better fit for your priorities if you prefer a 40 mm case, a date display, its ceramic-inlaid bezel design, or the longer stated reserve.
- Compare local offers carefully if price is decisive; the cited prices come from different market contexts and do not establish a like-for-like cost difference after local taxes.
- Check the actual warranty documents for your purchase region and channel. Headline terms alone do not settle territorial coverage, conditions, or eligibility for Breitling’s extension.
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.
