What’s actually slowing this PC down?
Pick the symptom - the matching free tool is one click away.
The Jaeger-LeCoultre Master Control Calendar Q4148450 is a 2025, 40 mm stainless-steel watch with an automatic Calibre 866, a day-date-month calendar, and a moon-phase display. Its two-tone grey grained dial and a red-tipped date hand that jumps clear of the subdial distinguish this 500-piece limited edition.
What is the Jaeger-LeCoultre Q4148450?
Q4148450 is Jaeger-LeCoultre’s 2025 stainless-steel Master Control Calendar reference. The manufacturer identifies it as a limited edition of 500 pieces. The model combines a traditional calendar layout with a moon phase, powered by the automatic in-house Calibre 866. Jaeger-LeCoultre’s product page lists the reference as Q4148450 and its internal code as JLQ4148450; the maker’s 2025 press announcement also identifies the 500-piece limit.
What are the specifications of the Master Control Calendar Q4148450?
| Specification | Q4148450 |
|---|---|
| Reference | Q4148450; internal reference JLQ4148450, according to Jaeger-LeCoultre |
| Case | Stainless steel; 40 mm diameter and 10.95 mm thick |
| Water resistance | 5 bar, as stated by Jaeger-LeCoultre |
| Dial | Two-tone grey with a grained finish; polished rhodium-finish numerals and hour markers |
| Movement | Automatic in-house Calibre 866, also identified on the product page as Calibre 866AA |
| Power reserve | 70 hours |
| Frequency | 28,800 vibrations per hour (4 Hz) |
| Movement construction | 344 components and 34 jewels |
| Indications | Hours, minutes, seconds, day, date, month, and moon phase |
| Strap and buckle | Interchangeable black calfskin strap; 20 mm lug width; stainless-steel double-folding buckle |
| Edition | Limited to 500 pieces, according to Jaeger-LeCoultre’s 2025 announcement |
These are manufacturer specifications, not independent test results. The figures and descriptions are published on the official product page and, for the edition and core technical details, the 2025 press announcement.
How does the jumping date work?
A central date hand points to the date around the edge of the dial. Jaeger-LeCoultre says it makes a 90-degree jump between the 15th and 16th of each month. That movement clears the area occupied by the moon-phase and small-seconds subdial, so the date hand does not cover it. This is the manufacturer’s explanation of the design, not an independent performance assessment. Jaeger-LeCoultre describes the date-hand jump on the product page.
Outdated Drivers Are Slowing You Down
One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchPC Slower Than It Used to Be?
A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11#1 Best Overall
- 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.
Is the Q4148450 a limited edition?
Yes. Jaeger-LeCoultre’s 2025 press material states that the Q4148450 is limited to 500 pieces. That is the announced production limit; it does not establish how many pieces remain available from retailers or on the secondary market.
What strap fits the Jaeger-LeCoultre Q4148450?
The manufacturer specifies an interchangeable black calfskin strap and a 20 mm lug width. That dimension is a useful starting point when looking for a replacement, but it does not confirm that every third-party 20 mm strap will fit correctly. Check the end fitting and whether the specific strap works with the watch’s buckle before buying. Jaeger-LeCoultre’s product page provides the strap specification and routes to its maintenance advice and user manual.
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.
Price and availability
The manufacturer’s product and press pages establish the model and its specifications, but the cited information does not establish a current retail price, live stock, or secondary-market value. Confirm price and availability directly with Jaeger-LeCoultre or an authorized retailer. For any marketplace listing, verify the seller, reference, and authenticity rather than assuming a listing is genuine or in stock.
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
- 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
- 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.
Recommended Free Tools
