Watch Anatomy Book Vol. 36: GMT-Master II (Ref. 116710LN, Ref. 116710BLNR)

What do you look for when choosing a mechanical watch?

Many people would probably answer "design," "functionality," and "asset value." Of course, appearance and resale value are very important points, but by increasing your knowledge and understanding of the historical background of brands and models, minor changes over the years, and other factors, you will likely come to love watches even more and enjoy the fun of choosing one. In this column, we will provide as much information as possible about mechanical watches to both beginners and advanced watchers, and will provide a thorough analysis and explanation to help you choose a watch.

This time, we will be focusing on the Rolex GMT-Master II "Ref. 116710LN/Ref. 116710BLNR," so please read to the end.

GMT-Master II Ref. 116710LN / Ref. 116710BLNR

In 2007, Rolex introduced the Ref. 116710LN, a new generation model of the GMT-Master II with a completely updated design and functionality. In addition to significant updates to the case, bracelet, and movement, the bezel features a scratch- and fade-resistant Cerachrom insert. This model combines the functionality and robustness that have been a hallmark of the GMT-Master since its inception with a modern touch of luxury.

In 2013, the Ref. 116710BLNR (commonly known as the Batman) was released, featuring the first GMT-Master II with a blue and black two-tone Cerachrom bezel. Its high visibility and unique color scheme made it one of the most popular current models.

Basic specifications and production period: Ref. 116710LN: 2007-2019, Ref. 116710BLNR: 2013-2019. Case size: 40mm.
Rotating bezel with 24-hour scale and Cerachrom insert. Crystal: Sapphire crystal. Water resistance: 100m.
Movement: Cal.3186
Bracelet: Oyster bracelet (Ref. 78200)

Dial and luminous

night light

① Luminova luminous material : The early "Ref. 116710LN" model uses green-emitting Luminova luminous material, which provides high visibility in dark places and is resistant to fading.
② Chromalight Luminous The later model "Ref. 116710LN" and "Ref. 116710BLNR" use Rolex's proprietary Chromalight luminous material, which emits a blue light and maintains its brightness for a long time.

Dial Variations

①Model logotype : The classic “GMT-MASTER II” logo.
②The horizontal lines above and below the rectangular "II" are short, making it appear longer.
③The "II" stick has a typeface with no horizontal lines above or below it. This is a rare feature that is rarely seen on sticks made after 2009.

bezel

Reference 116710LN

The black Cerachrom bezel creates a calm and dignified impression, and is suitable for a wide range of occasions, from formal to casual. Cerachrom is highly scratch-resistant and UV-resistant, and the color hardly fades over time.

Reference 116710BLNR

The two-tone Cerachrom bezel is the first in the collection to feature a blue and black color scheme, providing visual support for distinguishing between day and night. It is affectionately known as "Batman."

bracelet

Oyster bracelet: 78200
The clasp is an Oysterlock clasp with an Easylink mechanism (5mm extension adjustment), greatly improving comfort and convenience.

Since the summer of 2015, the clasp has been changed from matte to a mirror finish, which has resulted in a change in price.

*The top of the image is matte and the bottom is mirror finish.

Movement

The "Ref.116710LN/Ref.116710BLNR" is equipped with the "Cal.3186," an evolution of the "Cal.3185."
- The use of a Blue Parachrom hairspring improves magnetic resistance and shock resistance.
- The movement of the 24-hour hand has been made smoother, improving the operability of the GMT function.
- Vibration frequency: 28,800/hour, power reserve: approximately 48 hours.

summary

The "Ref. 116710LN" is a pioneering design update for the "GMT-Master II," and is a model that significantly improves durability and luxury.
The "Ref. 116710BLNR" further accentuates its individuality and has become a symbol of the modern "GMT-Master II."

Even after production ended, its popularity has not waned, and it still maintains a high reputation in the market today. In particular, it is becoming increasingly difficult to obtain a good-condition model or a complete set.
Equipped with a Cerachrom bezel and the latest specifications, the "Ref. 116710LN/Ref. 116710BLNR" offers a different feel from the current model, making it an attractive watch that is both collectible and highly practical.

See you again in the next model explanation!
See you next time!!