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At a glance: two 39 mm watches with different purposes
| Feature | Burgundy Black Bay 58 | Opaline Black Bay Pro |
|---|---|---|
| Reference | M7939A1A0RU | M79470-0004 |
| Primary function | Time-only, dive-style watch | GMT: reference time plus local time |
| Case | 39 mm stainless steel | 39 mm steel |
| Bezel | Unidirectional, with burgundy anodized-aluminium insert | Fixed satin-brushed steel, graduated for 24-hour time |
| Dial | Domed burgundy | Opaline |
| Movement | Manufacture Calibre MT5400-U | Manufacture Calibre MT5652 with built-in GMT |
| Water resistance | 200 m (660 ft), per TUDOR’s 2025 specification | Not stated in the cited product information used for this comparison |
What the burgundy Black Bay 58 offers
The Burgundy Black Bay 58, reference M7939A1A0RU, is the more straightforward of the pair: it displays the time without a GMT function. Its burgundy dial and matching bezel insert give the classic dive-style layout a distinctive color treatment. TUDOR specifies a 39 mm stainless-steel case, domed sapphire crystal and 200 m (660 ft) water resistance.
Inside is the Manufacture Calibre MT5400-U, certified by COSC and METAS. TUDOR lists a METAS-certified 65-hour power reserve, a frequency of 28,800 beats per hour (4 Hz), 27 jewels and a movement thickness of 4.9 mm. These are manufacturer specifications, not independent test results. See TUDOR’s 2025 Black Bay 58 press specification for the full details.
Bracelet and rubber options
TUDOR’s launch specification lists bracelet and rubber-strap options, with three-link and five-link bracelet configurations. The listed versions use TUDOR’s T-fit clasp. Check the complete reference and configuration on a seller’s listing: the shared model name alone does not identify which bracelet or strap is included.
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- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
How the opaline Black Bay Pro’s GMT works
The Opaline Black Bay Pro, reference M79470-0004, is the travel-oriented option. Its MT5652 movement drives a yellow 24-hour Snowflake hand for reference time and a shorter jumping-hour hand for local time. The local hour can be adjusted in jumps, and the date is coupled to local time, according to TUDOR’s Black Bay Pro collection information.
The Pro pairs its opaline dial with a fixed, satin-brushed steel bezel marked for 24-hour time. TUDOR says this 2025 version retains the 39 mm case, fixed steel bezel and in-house GMT calibre; it is not the burgundy Black Bay 58 with an added hand. For the exact model, consult TUDOR’s M79470-0004 product page.
Rank #2
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
Which one should you choose?
- Choose the Burgundy Black Bay 58 if you want a time-only watch with a unidirectional dive-style bezel, burgundy color scheme and a manufacturer-stated 200 m water-resistance rating. Decide whether you want the bracelet or rubber configuration.
- Choose the Opaline Black Bay Pro if you will use the separate reference-time hand and jumping local hour, or prefer the opaline dial and fixed steel 24-hour bezel.
- Compare the exact listing, not just the family name. Strap or bracelet configuration affects what is included, and the Black Bay 58 GMT is a separate model from this time-only Burgundy Black Bay 58.
Neither is a universal upgrade over the other: their defining difference is the GMT function, followed by the contrasting dial and bezel designs. Specifications alone do not establish comparative comfort, wrist fit, accuracy in use or long-term durability.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Prices and availability depend on market and configuration
Prices in the launch materials are not directly interchangeable. TUDOR’s 2025 Black Bay 58 press PDF lists Swiss prices including VAT of CHF 4,250, CHF 4,150 and CHF 3,950 across configurations. TUDOR’s US product page displayed a suggested retail price of $5,075 for the M79470-0004 when accessed on October 4, 2026, and notes that prices and models may change. These figures describe different models, markets and configurations; they are not a like-for-like global price comparison or a guarantee of current local pricing.
Rank #3
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
Current stock, transaction prices and dealer allocation are not established by those listings. For a purchase decision, confirm the reference, included strap or bracelet, local currency and current price with the seller. TUDOR’s 2025 Black Bay Pro press-room page identifies the launch, while Fratello’s April 1, 2025 introduction covers both releases.
Quick Recap
Best Value
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
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- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
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.
