Clean Factory Rolex GMT-Master II 116710LN – 40mm Black Dial, Oyster Bracelet & 3186 Super Clone

The Ceramic Pioneer: A Collector’s Take on the Discontinued 116710LN

From an objective collector’s standpoint, the GMT-Master II reference 116710LN holds a legendary status as the model that introduced the Cerachrom bezel to the steel GMT lineup. Now discontinued, it remains one of the most versatile and stealthy dual-time watches ever produced, eschewing the flashiness of bi-color bezels for a monochromatic, tactical aesthetic. Inspecting this latest Clean Factory 3186 build under a macro lens reveals four critical details that prove they have completely mastered this iconic aviation tool watch:

1. The Monochromatic Cerachrom Bezel: Look closely at the all-black ceramic insert in our macro photos. While bi-color bezels get all the attention, a pure black ceramic bezel is incredibly unforgiving—any unevenness in the polish or engraving is immediately visible. Clean Factory flawlessly executes the deep, liquid-gloss black finish. To ensure perfect legibility and longevity, the recessed 24-hour graduations are treated with real platinum PVD sputtering, matching the icy tone of the 904L steel.
2. Signature Green Accents: The defining characteristic of the 116710LN is its subtle pop of color. Clean meticulously replicates the specific Pantone of the Rolex corporate green on both the “GMT-Master II” dial text and the shaft of the GMT hand. The text is printed with a slightly raised, 3D effect, and the green GMT hand features a precisely finished triangle tip that aligns perfectly with the dial indices.
3. The Sport-Focused Oyster Architecture: This reference was exclusively offered on the three-piece Oyster bracelet. Clean flawlessly machines this bracelet from solid 904L steel, featuring heavily brushed outer links paired with mirror-polished center links (PCLs). This robust architecture anchors the 40mm case with a heavier, more aggressive stance, providing a highly secure, planted feel on the wrist.
4. Accurate Hand Stack & Finishing: Zoom in on the center pinion. Clean executes the correct GMT hand stack (Hour, GMT, Minute, Second) mirroring the OEM caliber. This is a critical detail that lower-tier replicas often get wrong by stacking the GMT hand at the very bottom.

Caliper & Bench Specifications: Clean 116710LN “Black Ceramic”

Inside the Case: Inspecting the 3186 Super Clone

Powering this stealthy traveler is the highly reliable 3186 Super Clone. As someone who evaluates movement mechanics, the integration of a true jumping hour GMT complication is the ultimate test of a clone. It delivers three major functional advantages:

• True Jumping Local Hour: Just like the OEM caliber, unscrewing the crown to the first position allows you to jump the standard hour hand forward or backward in one-hour increments without stopping the seconds hand or disrupting the minute hand. This allows for instant time-zone adjustments while crossing borders.
• Authentic 3186 Feedback: The winding action and date-setting feel exactly replicate the older-generation 3186 caliber, providing a smooth and tactile experience that outclasses cheap, modified off-the-shelf movements.
• Factory-Accurate 12.1mm Thickness: Because the GMT module is integrated directly into the mainplate rather than stacked on top, the case profile stays faithful to the remarkably slim 12.1mm specification, allowing the watch to wear incredibly flat on the wrist.

The Collector’s Reality: The Stealth GMT

In the enthusiast community, the discontinued 116710LN is heavily respected because it flies under the radar. It doesn’t scream for attention like a Pepsi or a Batgirl, making it the perfect daily wearer. Here is an objective breakdown of why collectors choose Clean for this specific reference:

• The Perfect Daily Tool: Clean Factory’s absolute mastery of the polished 904L steel and the deep black ceramic means this watch transitions effortlessly from a t-shirt at the airport to a tailored suit in the boardroom. By nailing the subtle green accents and the complex hand stack, this piece passes the ultimate enthusiast check while providing a highly robust daily-wear experience.

Practical Ownership Notes (GMT Function, Winding & Sizing)

• Setting the Date (Crucial): There is no traditional “quick-set” date position on a true GMT. To change the date, you must use the jumping local hour hand, cycling it past midnight to advance or reverse the date wheel, exactly as you would on the 3186.
• Crown Discipline: Always ensure the Triplock winding crown is screwed down completely tight against the case after setting the time or crossing time zones to prevent dust and moisture intrusion.
• Easylink Micro-Adjustments: Hidden inside the secure Oysterlock clasp is a 5mm Easylink extension. If the watch feels slightly tight after a long flight, simply fold out the extension instantly by hand, with zero tools required.