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Fix the driver behind crashes, sound loss and screen glitchesFind Drivers →Repair Windows errors before they cause bigger problemsFix Now →The Jaeger-LeCoultre Reverso Classic Monoface Small Seconds Q3868520 is the midsize reference covered here: its stainless-steel case measures 40.1 × 24.4 mm and is 7.56 mm thick, according to the manufacturer’s current specifications. It has a manually wound Calibre 822, a 42-hour stated power reserve, and a single silvered-grey dial with small seconds. “Midsize” is a useful description of this reference, not a universal Reverso size category.
What size is the Q3868520?
Jaeger-LeCoultre lists the Q3868520 case at 40.1 × 24.4 mm (length × width), with length measured lug-to-lug, and 7.56 mm thick. These are the manufacturer’s published dimensions, not independent measurements. The slim profile and rectangular proportions are central to the watch’s visual character, but the figures alone do not establish how it will fit or feel on a particular wrist.
The manufacturer says this case size was introduced in 2024 and that its proportions closely resemble the original 1931 Reverso. That is historical and design context from Jaeger-LeCoultre, rather than a claim that this reference duplicates the original in every detail.
How does the dial and reversible case work?
The Q3868520 is a Monoface: it has one functional dial, not a second display on the reverse. The front dial is described by Jaeger-LeCoultre as silvered grey, with a guilloché centre, vertical satin brushing, black transferred numerals, stick hands, and a small-seconds display. The launch announcement calls the guilloché motif a “coin stack” pattern.
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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.
The watch’s Reverso case turns within its surrounding frame, exposing a blank metal reverse. Jaeger-LeCoultre presents that surface as suitable for personalization by engraving or lacquer. The blank reverse is a customizable caseback, not another time display.
What movement is inside, and how often does it need winding?
The watch uses Jaeger-LeCoultre Calibre 822, a hand-wound mechanical movement that the manufacturer says is designed, developed, and crafted within its Manufacture. Jaeger-LeCoultre specifies a 42-hour power reserve. That is the published reserve figure; it is not an independent timing or endurance test.
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.
| Calibre 822 specification | Jaeger-LeCoultre listing |
|---|---|
| Winding | Manual |
| Power reserve | 42 hours |
| Frequency | 21,600 vibrations per hour (3 Hz) |
| Components | 108 |
| Jewels | 19 |
| Barrels | 1 |
| Movement thickness | 2.96 mm |
These are manufacturer-published specifications. They do not establish the watch’s real-world accuracy, service needs, or long-term reliability.
What are the strap and water-resistance specifications?
The listed strap is black calfskin with an 18 mm lug width and a stainless-steel pin buckle measuring 16 mm across. Standard strap lengths listed by Jaeger-LeCoultre are 70 mm at 12 o’clock and 110 mm at 6 o’clock. The launch announcement identifies the interchangeable strap as a Casa Fagliano design. The 18 mm lug-width figure alone does not confirm that any third-party strap will fit the Reverso case correctly; check its end shape and attachment.
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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.
Jaeger-LeCoultre lists water resistance at 3 bar. The product information cited here does not translate that rating into a practical activity guarantee, so it should not be treated as evidence of suitability for swimming or other water activities.
How does Q3868520 compare with Q2438522?
Both references are presented on Jaeger-LeCoultre pages as Reverso Classic small-seconds models, but they are distinct watches with different listed case dimensions. Do not use one reference’s measurements to describe the other.
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
- 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
| Reference | Manufacturer model name | Case dimensions (L × W) | Thickness |
|---|---|---|---|
| Q3868520 | Reverso Classic Monoface Small Seconds | 40.1 × 24.4 mm | 7.56 mm |
| Q2438522 | Reverso Classic Medium Small Seconds | 42.9 × 25.5 mm | 7.46 mm |
The cited official pages list Calibre 822 and 3-bar water resistance for both references. Confirm the exact configuration on the listing for the specific watch and region you are considering; prices and availability are not established here.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What is established—and what is not
The manufacturer’s current product information establishes the Q3868520’s listed construction, dimensions, movement specifications, dial details, strap measurements, and water-resistance rating. Its launch announcement supplies context on the case-size introduction, the dial pattern, the customizable reverse, and the Casa Fagliano strap.
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.
Those sources do not establish independent wrist-fit or comfort findings, measured accuracy, long-term reliability, service costs or intervals, resale value, current market price, or stock. Jaeger-LeCoultre provides a boutique purchase route on its product page, but that is not confirmation of inventory in a particular location.
Quick Recap
Sources
- Jaeger-LeCoultre: Reverso Classic Monoface Small Seconds Q3868520
- Jaeger-LeCoultre Press: Reverso Classic Small Seconds in a new midsize version
- Jaeger-LeCoultre: Reverso Classic Medium Small Seconds Q2438522
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.
