Short answer
The Rolex GMT-Master II reference 126710BLNR is a 40 mm steel watch with a blue and black ceramic 24-hour bezel. Collectors call it the 'Batgirl' when it has a Jubilee bracelet, and the 'Batman' name applies to the earlier reference 116710BLNR. A replica 126710BLNR is a counterfeit: an unlicensed copy that carries Rolex trademarks. It sells for a few hundred dollars instead of a five-figure retail price. Selling or trafficking in it is a federal crime in the United States.
Genuine reference facts
- Case: 40 mm, Oystersteel, water resistance 100 m.
- Bezel: bidirectional, 24-hour scale, blue and black Cerachrom ceramic insert, platinum-coated numerals.
- Movement: caliber 3285, automatic, 70-hour power reserve, Chronergy escapement, blue Parachrom hairspring, Superlative Chronometer certification rated to -2/+2 seconds per day.
- Crystal: sapphire with a Cyclops lens over the date.
- Bracelet: Jubilee at the 2019 launch. Rolex added an Oyster bracelet option in 2021.
- Price: above $10,000 US retail before tax. Used examples often trade above retail.
Rolex publishes these specifications on its own site. A seller who cannot match a watch to that page is not selling the watch.
What 'replica' means in this market
Sellers split replicas into tiers. Low tiers use plated base metal, mineral glass, and a quartz or low-grade automatic movement. High tiers, often priced $400 to $800, copy the case profile and use a clone of the 3285 with a decorated rotor. Both tiers carry the Rolex name, the crown logo, and GMT-Master text. That marking is what makes the item counterfeit, apart from metal or finish quality.
What a replica does not have: genuine Cerachrom insert material, Rolex parts, Rolex service, a valid warranty card, or resale value.
Checks that separate a genuine watch
- Serial and reference engravings at the lugs, plus a rehaut engraving aligned to the minute track.
- Bezel action: 24 crisp clicks per full rotation on the genuine article.
- Movement inspection by a watchmaker, including balance wheel and rotor engraving.
- Case weight and steel alloy. Oystersteel differs from common 316L stainless. The exact weight is not published by Rolex.
Legal status in the US
Trafficking in counterfeit goods is a federal offense under 18 U.S.C. § 2320. For an individual on a first offense, penalties reach 10 years imprisonment and a $2 million fine. Repeat offenses and cases involving injury carry higher terms. Civil liability runs in parallel under the Lanham Act, which allows statutory damages up to $2,000,000 per counterfeit mark for a willful violation. US Customs and Border Protection seizes counterfeit watches at ports of entry and can destroy them. Personal import of counterfeit trademarked goods is not permitted.
Service, parts, and resale
Rolex does not sell parts to the public and does not service counterfeits. A watchmaker can swap a clone movement, but no component on a replica comes from Rolex. A genuine 126710BLNR carries a five-year transferable warranty from the purchase date, so a dated card should come with the watch. A serial number can be verified through a Rolex service center. If a seller refuses an inspection by an independent watchmaker, treat that as the answer.