October DealsAmazon USOctober deal check: compare before you payAmazon US: current deals, useful picks and tech finds.Check DealsClean PCRecommendedOne scan can reveal what keeps slowing WindowsLook for cleanup and repair opportunities.Run ScanOctober DealsAmazon USDeal season is back - check today's better picksAmazon US: current deals, useful picks and tech finds.See Picks×
Skip to content
WatchRanker
Search
For vendors
Blog

LÜM-TEC Combat B70: Is This Colorful Automatic Watch the Right Fit?

The LÜM-TEC Combat B70 pairs a limited-edition red, white and blue look with a 43 mm case, but its 51.5 mm lug-to-lug length merits a careful fit check.
Estimate3–4 min Catalogued SpecialistWatchRanker Team
Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

The LÜM-TEC Combat B70 is a limited-edition automatic with a blue dial, luminous hands and markers, and a red, white, and blue sports-flight look. Its official specifications include a 43 mm forged-steel case, 200 m water resistance and two nylon straps. The key fit question is its 51.5 mm lug-to-lug length; the movement designation also differs between the manufacturer listing and some secondary pages.

What the Combat B70 offers

LÜM-TEC lists the Combat B70 as a limited edition of 500 pieces. The manufacturer describes its style as a blend of flight and sports-watch cues, built around a blue dial and luminous hands and markers. Its case is listed as forged 316L stainless steel, bead blasted, heat treated and anti-fingerprint coated. These are manufacturer descriptions, not independently verified test results.

As an Amazon Associate I earn from qualifying purchases.

Official specifications

Specification LÜM-TEC listing
Edition Limited edition of 500 pieces
Case material and finish Forged 316L stainless steel; bead blasted, heat treated and anti-fingerprint coated
Case diameter 43 mm
Lug-to-lug 51.5 mm
Thickness 13.6 mm
Lug width 22 mm
Crystal Curved sapphire with inner anti-reflective coating
Movement Miyota 9015 automatic; hand winding and hacking
Beat rate and stated reserve 28,800 BPH; approximately 42 hours
Water resistance 200 m; screw-lock crown and Viton gaskets
Included straps Two nylon military straps, gray and blue
Warranty LÜM-TEC describes a four-year extended warranty; check the current terms before purchase

These figures and features are from LÜM-TEC’s official product listing. The water-resistance rating, materials and construction details are manufacturer claims; they should not be read as independent test findings.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

How big does the Combat B70 wear?

The 43 mm diameter gives a useful first indication, but the 51.5 mm lug-to-lug measurement is the more important fit check. A secondary review cautions that the watch may wear large. Rather than infer fit from wrist size alone, compare the 51.5 mm span with the lug-to-lug length of a watch you already know fits comfortably. The 13.6 mm thickness is another dimension to consider if you prefer a watch that sits low beneath a sleeve.

#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
  • 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.

Which movement is in the LÜM-TEC B70?

LÜM-TEC’s product page specifies a Miyota 9015 automatic movement with hand winding and hacking, along with a stated beat rate of 28,800 BPH and approximately 42 hours of power reserve. Secondary pages are inconsistent: Fashion by Passion identifies the caliber as a 9039, while Buying Time Analysis includes conflicting caliber references. The official listing is the clearest primary specification available, but buyers who consider the exact caliber decisive should confirm it with LÜM-TEC. The conflicting references do not establish that either secondary designation is correct.

What does the Combat B70 cost?

Two source-reported prices provide context, not a verified current universal price. LÜM-TEC’s undated French storefront result lists €895. A Watchlopedia review dated October 5, 2026 reports a retail price of $1,095 USD. These are different currencies and source contexts, not a like-for-like price comparison or confirmation of today’s local price. Check the manufacturer or an authorized retailer for current price, availability and applicable terms.

Rank #2
Sale
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
  • 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.

Are the included straps enough, or can you change them?

The listing includes gray and blue nylon military straps, and the stated 22 mm lug width gives owners a reasonable path to try other straps. The width alone does not guarantee that every strap will fit: check a specific strap’s dimensions, hardware and return terms before ordering. LÜM-TEC’s catalog also lists 22 mm replacement-strap options.

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Support on Ko-Fi

Who should consider the Combat B70?

The B70 makes the most sense for someone who actively wants its bold red, white and blue treatment, appreciates a limited run and values the manufacturer-listed sapphire crystal, 200 m water resistance and included straps. It is a less straightforward choice for someone who prefers compact proportions: the 51.5 mm lug-to-lug span deserves a real comparison against a known-fitting watch. Confirm the exact movement designation and current local price if either could change your decision.

Best Value
Sale
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display | 85W Max PD, 1 Powered USB-C 5Gbps & 2 Powered USB-A 3.0 5Gbps Data Ports, for MacBook Pro, MacBook Air, Dell and More (Black)
  • 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
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
  • 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
  • Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
  • 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
Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
  • 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.

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.

Leave a Reply

Your email address will not be published. Required fields are marked *

Special offer. See more information about Outbyte and uninstall instructions. Please review EULA and Privacy policy.

More lots from the Journal

  1. Lot1Mechanical vs. Quartz Watches: How to Choose the Right MovementBlogEstimate 4–5 min
  2. Lot2How to Best Sell Your Watch: Choose the Right Channel for Your GoalBlogEstimate 7–9 min
  3. Lot3Spring-Bars and NATOs: A Practical Guide to Watch Straps, Buckles and BarsBlogEstimate 6–8 min
Recommended PC Tool
Recommended PC Tool
Windows Errors? Fix Them Before They SpreadFree repair scan
Outdated Drivers Are Slowing You DownFree scan - exact matches

Two free Windows tools

One Free Minute Could Fix That PC

Before you go - each of these free tools takes about a minute and tackles what quietly slows a Windows PC down.

Special offer. View Outbyte info, uninstall instructions, EULA, and Privacy Policy.