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Rolex GMT-Master II 126710BLNR: Blue-and-Black Bezel Specifications and GMT Function

A specifications-led guide to the Rolex GMT-Master II 126710BLNR, its blue-and-black Cerachrom bezel, calibre 3285 and two-time-zone display.
Estimate3–4 min Catalogued SpecialistWatchRanker Team

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The Rolex GMT-Master II reference 126710BLNR is a 40 mm Oystersteel watch with a blue-and-black Cerachrom bezel and Rolex calibre 3285. Its defining travel feature is an independently adjustable local hour hand: the arrow-tipped 24-hour hand continues to show reference time, while rotating the bezel lets you read an alternative time zone. The specifications and operation described here are based on Rolex’s published material, not an independent hands-on test.

What the Rolex 126710BLNR is

Rolex identifies reference 126710BLNR as an Oystersteel GMT-Master II with a two-colour blue-and-black Cerachrom bezel insert. The official product result lists a black dial and Jubilee bracelet; listings and bracelet configurations can vary, so verify the exact configuration of a particular watch.

The blue-and-black bezel is part of the model’s visual identity, but it also has a practical role: its 24-hour scale works with the arrow-tipped GMT hand to display a second time zone. Rolex says it introduced a blue-and-black two-colour Cerachrom insert on an Oystersteel GMT-Master II in 2013. Rolex’s GMT-Master II history provides the model-family context.

Rolex 126710BLNR specifications

Specification Rolex’s stated details
Case 40 mm Oyster case in Oystersteel
Bezel Bidirectional rotatable 24-hour bezel with blue-and-black Cerachrom ceramic insert; numerals and graduations are moulded
Movement Calibre 3285, perpetual self-winding mechanical movement with GMT function
Power reserve Approximately 70 hours, as described by Rolex for calibre 3285
Crystal Scratch-resistant sapphire with a Cyclops lens over the date
Crown Screw-down Triplock triple-waterproofness winding crown
Water resistance 100 metres / 330 feet
Precision −2/+2 seconds per day after casing, Rolex’s stated specification
Bracelet and dial Black dial and Jubilee bracelet in the returned Rolex product result; confirm the configuration of the specific watch

These are manufacturer specifications, not results from an independent inspection or timing test. Rolex describes the Superlative Chronometer testing as applying to the complete watch after casing. Its newsroom material also identifies a paramagnetic blue Parachrom hairspring and Paraflex shock absorbers in calibre 3285. Rolex’s GMT-Master II collection information describes the movement and its approximate power reserve; the reference-specific details appear in the official 126710BLNR product material.

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Ewatchparts 2 PC 20MM SPRING BAR PIN COMPATIBLE WITH ROLEX GMT MASTER II 126710, 126710BLNR JUBILEE BAND
  • VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER – Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing.
  • Check Compatibility: This set includes 2 spring bars specifically designed for Rolex GMT Master II models 126710 and 126710BLNR with 20mm lugs. Please measure accurately before purchasing to ensure proper fit for newer 6-digit models.
  • Durable Material: Made from heavy-duty 316L stainless steel, these aftermarket spring bars ensure a reliable and long-lasting connection for your Rolex watch band.
  • Designed for Jubilee Bands: These spring bars are made to fit the Jubilee band of the GMT Master II, providing a seamless fit that maintains your watch's integrity.
  • Sizing Information: Each spring bar features a thickness of 1.5mm. Confirm your watch model number for compatibility, as these spring bars are designed specifically for newer models.

How the GMT-Master II displays two time zones

With the bezel in its neutral position, Rolex says the arrow-tipped 24-hour hand indicates reference time. The local hour hand can be moved independently in hour increments, without changing the minute hand, seconds hand or 24-hour hand. The date is synchronized with local time.

To display an alternative zone, rotate the bidirectional bezel and read the 24-hour hand against its graduations. This gives the wearer a choice: keep the bezel neutral to preserve a fixed reference-time display, or shift it to read another zone. The display is analogue and depends on the wearer interpreting the 24-hour scale; it does not automatically account for daylight-saving changes.

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  • Check Compatibility: This 316L stainless steel replacement link fits Rolex Jubilee bands with hidden clasps. Suitable for 41mm Datejust, GMT models 126710BLNR, 126720, 126710BLRO, and 126710GRNR. Measure your band's lug width for a perfect fit.
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Where the blue-and-black version fits in the model’s history

Rolex says the GMT-Master II name followed a movement update in 1982 that allowed its hour hand to be set independently of the other hands. The independently adjustable local hour hand is the key distinction behind the GMT-Master II’s travel-time operation. In 2013, Rolex introduced the blue-and-black two-colour Cerachrom insert on an Oystersteel GMT-Master II, the design lineage relevant to the 126710BLNR.

Rolex’s 2025 announcement of a white-gold GMT-Master II with a green dial and green-and-black bezel is a separate model-family release; its materials and colourway should not be confused with the Oystersteel 126710BLNR. Rolex’s collection history and its 2025 new-watches announcement provide those respective contexts.

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Ewatchparts STEEL OYSTER LINK COMPATIBLE WITH ROLEX GMT MASTER 2 CERAMIC 116710, 126710BLNR, 126710BLRO
  • VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER – Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing.
  • Quality 316L Stainless Steel: Crafted from premium 316L stainless steel, this link offers durability and a sophisticated feel. It is designed to endure daily wear and maintain its high standard.
  • Finish and Design: Features a shiny/matte top and a shiny side finish, closely matching the original Rolex look. This replacement link provides a seamless appearance on your watch band.
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  • Installation & Included Items: Comes with one link and screw for easy installation. No need for additional tools or adjustments. Please check the size and style of your existing band to ensure a proper fit.
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Rolex, Pre-loved Rolex GMT-Master II Batman 116710 40MM, Black
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  • VERIFY YOUR WATCH MODEL & MEASURE THE CORRECT SIZE USING A RULER Watch Parts Are Model and Size Specific. Please Verify Compatibility Before Purchasing.
  • Quality 316L Stainless Steel: Made from premium 316L stainless steel, this link offers exceptional durability and a luxurious feel. It is designed to withstand daily wear and maintain its integrity.
  • Finish and Design: Features a shiny/matte top and a shiny side finish, closely matching the original Rolex look. This replacement link provides a seamless appearance on your watch band.
  • Compatibility & Fit: Designed specifically for newer Rolex models with Oyster bands. This link will not fit watches made before 2010 or those with hidden clasps. Ensure your watch's band style is compatible before purchasing.
  • Installation & Included Items: Comes with one link and screw for easy installation. No need for additional tools or adjustments. Please check the size and style of your existing band to ensure a proper fit.

What to verify before considering a specific watch

  • Confirm the reference and exact bracelet configuration against the listing and the watch itself; the Jubilee bracelet and black dial are identified in the official product result, but not every catalogue presentation should be assumed identical.
  • Check the seller, condition and current availability for the individual item. No current price or live stock status is established here.
  • For setting instructions, use Rolex’s official watch-setting guide; this article explains the GMT display but does not provide a crown-position procedure.

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.

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