Clean Factory Rolex Submariner 116610LN – 40mm Black Dial, 904L & DD3135 Super Clone

The Classic “Maxi-Case”: Mastering the 40mm Black Submariner

At a glance, the discontinued 40mm 116610LN remains the definitive modern tool watch for purists who prefer the aggressive “maxi-case” proportions over the newer 41mm generation. Once you put Clean Factory’s latest Dandong 3135 build under a macro lens, four structural and aesthetic details explain why this batch is the gold standard for external hardware:

1. Fade-Resistant Platinum PVD: Run your finger over the black Cerachrom insert. Clean Factory built its empire on ceramic bezels. The recessed 60-minute graduations are treated with real platinum PVD sputtering, ensuring they remain brilliantly silvery and fade-resistant against UV light and natural skin oils, unlike cheaper white paint that eventually turns grey.
2. The 40mm Maxi-Case & Flush SELs: Look closely at where the bracelet meets the case. Clean perfectly replicates the aggressive, squared-off lug geometry of the pre-41mm era. The Solid End Links (SELs) are machined to sit completely flush against the lugs, eliminating daylight bleed and providing a rigid, premium feel on the wrist.
3. Gloss Black Canvas & Solid Pinion: Zoom in on the center of the dial. The glossy black lacquer dial is meticulously finished to reflect light beautifully. More importantly, the central hand stack features a properly capped, solid pinion—completely avoiding the hollow “donut hole” that hardcore enthusiasts immediately check for.
4. 3D Hand Finishing & Chromalight: Inspect the 18k white gold-plated hour marker surrounds and hands. They are smoothly polished without jagged edges and evenly filled with Swiss Chromalight, delivering an intense, long-lasting ice-blue glow in low-light environments.

Caliper & Bench Specifications: Clean 116610LN

Inside the Case: Inspecting the Dandong DD3135 Super Clone

Powering this classic reference is the legendary Dandong DD3135. Known throughout the modding community as the most robust and accurate 1:1 clone of the original Rolex caliber, it delivers three major advantages:

• Genuine Mechanics & Feel: It operates exactly like the OEM caliber, providing the correct tactile feedback during clockwise time-setting and a crisp, instantaneous date jump exactly at midnight.
• The Ultimate “Franken” Canvas: Because the architecture is a 1:1 mirror of the genuine 3135, this movement is a dream for modders. It effortlessly accepts authentic Rolex replacement parts (like a gen datewheel, reversing wheels, or balance bridge) without any custom milling.
• Proven Reliability: Regulated before shipping, the DD3135 provides a highly stable ~40-hour power reserve and excellent amplitude, ensuring years of dependable daily wear.

Clean Factory vs. VS Factory (VSF) 116610LN: The Honest Breakdown

Seasoned buyers on watch forums constantly debate between Clean Factory (CF) and VS Factory (VSF) for the 40mm Submariner. Here is an objective comparison without the sales hype:

• Case Geometry & Bracelet (Winner: Clean Factory): Clean holds a noticeable edge in external hardware. Their 904L steel bracelet has superior brushing, the clasp action is crisper, and the SEL (Solid End Link) fitment is much tighter than VSF’s, making the watch feel significantly more solid on the wrist.
• The Bezel Insert (Winner: Clean Factory): Clean’s proprietary V4 black Cerachrom bezel and platinum PVD fill remain the undisputed industry standard, offering deeper engravings, crisper clicks, and better long-term fade resistance.
• Crystal Clarity (Winner: VSF by a hair): VSF is famous for its ultra-clear crystal and “black hole” effect on the cyclops. While Clean’s latest crystal is vastly improved and highly transparent, VSF still retains a microscopic edge in raw AR coating clarity out of the box. However, for buyers who prioritize overall case rigidity, bracelet feel, and bezel quality over a fractional crystal difference, Clean is the ultimate choice.

Practical Ownership Notes (Sizing & Bezel Care)

• Glidelock Adjustment: Inside the clasp, the tool-free Glidelock mechanism allows you to pull the toothed rack outward to instantly adjust the bracelet in 2mm increments (up to 20mm total). This provides a perfect fit as your wrist swells on hot days.
• Screwdriver Warning: The removable 904L Oyster links are secured with threaded screws. Always use a proper 1.6mm hollow-ground flathead screwdriver when sizing the bracelet to avoid stripping the screw heads or scratching the brushed steel finish.
• Keeping the Bezel Crisp: The 120-click bezel action is exceptionally crisp. If you ever swim in saltwater or a chlorinated pool, simply rinse the watch under lukewarm tap water while spinning the bezel a few times to flush out microscopic debris and maintain the factory feel.