Rolex GMT‑Master II 40 mm Ref#M126710GRNR‑0004

🔹 Overview
The Rolex GMT‑Master II 40 mm Ref. M126710GRNR‑0004 is a refined travel watch crafted for those who navigate the globe with style. Built entirely in Oystersteel, this model pairs a distinctive black and grey Cerachrom ceramic bezel insert with a versatile Oyster bracelet, exuding a more athletic and contemporary presence than its Jubilee‑bracelet sibling. Designed to track two time zones simultaneously, it houses Rolex’s advanced Calibre 3285, delivering both exceptional performance and enduring reliability.

💎 Key Specifications

• Origin: Switzerland — part of the iconic Oyster Perpetual GMT‑Master II series

• Gender: Men’s / Unisex

• Case Diameter: 40 mm Oyster case in corrosion‑resistant Oystersteel

• Case Material: Solid Oystersteel middle case with polished lugs and brushed sides

• Bezel: Bidirectional rotatable 24‑hour graduated bezel with two‑color black and grey Cerachrom insert; numerals and graduations coated in platinum via PVD process

• Dial: Black lacquer dial with Chromalight display for long‑lasting blue luminescence

• Hour Markers: Applied markers in 18 ct white gold, filled with Chromalight luminous material

• Bracelet Type: Oyster bracelet in Oystersteel with flat three‑piece solid links, Oysterlock safety clasp, and 5 mm Easylink comfort extension

• Glass: Scratch‑resistant sapphire crystal with Cyclops lens over the date window at 3 o’clock

• Water Resistance: 100 m / 330 ft, Triplock triple waterproofness system

⏱️ Movement

• Type: Perpetual, mechanical, self‑winding with GMT functionality

• Caliber: Rolex Calibre 3285 — equipped with Chronergy escapement for high efficiency, Parachrom hairspring for anti‑magnetism, and Paraflex shock absorbers

• Certification: Superlative Chronometer, −2/+2 sec/day after casing

• Power Reserve: Approximately 70 hours

• Frequency: 28,800 vph (4 Hz)

• Jewels: 31

• Functions:

  • Hours, minutes, seconds

  • 24‑hour hand for second time zone

  • Independently adjustable local hour hand

  • Instantaneous date with rapid setting

  • Stop‑seconds for precise time setting

✅ Highlight Summary
The Rolex GMT‑Master II Ref. M126710GRNR‑0004 brings a sporty, streamlined aesthetic to the classic GMT design. The black and grey ceramic bezel is subtle yet distinctive, while the Oyster bracelet offers robust comfort and durability. Powered by the state‑of‑the‑art Calibre 3285, this watch delivers precision within ±2 seconds per day, 70 hours of autonomy, and enhanced resistance to shocks and magnetic fields. Perfect for professionals and world travelers, it blends Rolex’s legendary engineering with modern versatility.