CF Factory Longines Forerunner L3.820.4.73.6 Black Dial 42mm Review

Quick Questions

• How does the CF Factory Longines Forerunner L3.820.4.73.6 compare to the genuine model?
• Is the CF Factory Longines Forerunner black dial 42mm worth buying?
• What movement is inside the Longines L3.820.4.73.6 super clone?
• Where can I buy the best Longines Forerunner replica?
• Does the CF Factory Longines Forerunner come with a leather strap or bracelet?

CF Factory has expanded its Longines Forerunner lineup with the new L3.820.4.73.6 Super, a men's black-dial chronograph with a 42mm case and a genuine leather belt. This release follows the earlier L3.810.4.73.6 and L3.811.4.73.6 versions, and it continues the factory's commitment to replicating the original Longines design with high precision.

The case construction was developed by disassembling a genuine watch and mapping every component using proprietary network-based techniques. This ensures that the case shell, case back, and all dimensions—including the 42mm diameter and thickness—match the authentic pieces. The CNC polishing process replicates the original finish, and the lugs and screws are engineered for full interchangeability with genuine parts, offering a seamless fit for those who want to swap components.

Dial and Lume Details

The black dial features a fine frosted-grain texture that mirrors the genuine version, capturing the same light reflection from any angle. Applied numerals, markers, the logo, and the five-pointed star are individually crafted using genuine-style materials and manufacturing methods. After multiple mold refinements, the three-dimensional appearance closely matches the original. The lume uses genuine Swiss C3 super-luminous powder at a density of 1kg/20w. After 15 minutes of light exposure, it glows for 4-6 hours, applied by hand with decades of expertise to ensure even coverage without overflow.

Crystal and Water Resistance

The curved sapphire crystal features a double-sided blue anti-reflective coating and smoothly chamfered edges. Its thickness is held to a 0.03mm tolerance, providing excellent scratch resistance and transparency. The screw-down crown has been tested to offer water resistance up to 10 bar, matching the genuine watch's capabilities.

Strap and Bracelet Options

This version comes with a genuine French top-layer calf leather strap, known for its softness and comfort. Every stitch and detail, including the numbering, matches the original. For those who prefer a bracelet, CF also offers a steel option with CNC-polished links, crisp brushing, and a clasp that has been refined to prevent loosening over time, reproducing the authentic closing sound.

Movement and Quality Control

Inside, the watch runs on a refined ETA7753 chronograph movement, with the 7750 as an alternative base. CF's specialists have polished and stabilized the movement to improve durability and avoid the common issue of the chronograph running empty. Each watch undergoes rigorous quality control, including movement inspection and regulation by a CF watchmaker. The package includes a movement inspection report, a genuine leather case, and five authentication codes.

CF Factory is dedicated to preserving the original Longines design and precision, and this L3.820.4.73.6 is a testament to that commitment. Continue reading below for more details on specific aspects of this model.

More Questions About CF Factory Longines Forerunner L3.820.4.73.6

• How much does the CF Factory Longines Forerunner L3.820.4.73.6 cost?
• Is the CF Factory Longines Forerunner L3.820.4.73.6 a good replica?
• What is the accuracy of the Longines L3.820.4.73.6 super clone movement?
• Does the CF Factory Longines Forerunner black dial have a genuine Swiss movement?
• How does the CF Factory Longines Forerunner compare to the original Longines?
• Is the CF Factory Longines Forerunner water resistant?
• What is the case thickness of the CF Factory Longines Forerunner 42mm?
• Can I get a steel bracelet for the CF Factory Longines Forerunner belt version?
• Where to buy the CF Factory Longines Forerunner L3.820.4.73.6 replica?
• Is the CF Factory Longines Forerunner worth the price?
• What are the common flaws of the CF Factory Longines Forerunner replica?
• How does the lume on the CF Factory Longines Forerunner hold up?
• What is the dial texture like on the CF Factory Longines Forerunner black dial?
• Does the CF Factory Longines Forerunner come with a leather strap?
• How comfortable is the CF Factory Longines Forerunner on the wrist?
• What is the resale value of a CF Factory Longines Forerunner replica?
• Is the CF Factory Longines Forerunner a 1:1 super clone?
• How does the CF Factory Longines Forerunner compare to other Longines replicas?
• Can I service the CF Factory Longines Forerunner movement?
• Does the CF Factory Longines Forerunner have a chronograph function that works?