Q: What is the Rolex GMT-Master II ref. 116710BLNR “Batman”?
A: It is a 40mm Rolex GMT-Master II in steel with a black dial, a black and blue ceramic 24-hour bezel, automatic movement, date display and Oyster bracelet. The nickname “Batman” comes from the blue-and-black bezel colour combination.

Q: What does the GMT function do?
A: The GMT function lets you read two time zones at once using the 24-hour hand and bezel. You can also use the rotating bezel to track a third time zone, which makes this model especially practical for travel and everyday international use.

Q: Which movement does this reference usually use, and what is the power reserve?
A: The 116710BLNR is typically associated with Rolex calibre 3186, a self-winding mechanical movement with GMT and date functions. Power reserve is generally around 48 hours when fully wound.

Q: Is the black and blue ceramic bezel durable, and will the colour fade?
A: The Cerachrom bezel is highly scratch-resistant and the colour is built into the ceramic, so fading under normal wear is not generally expected. However, ceramic can still chip or crack if the watch receives a hard knock.

Q: Is this watch water-resistant?
A: This model was originally designed with 100-metre water resistance. As this is a pre-owned watch, we recommend treating water resistance with care unless the seals and pressure testing have been checked recently by a qualified watchmaker.

Q: Does it have a sapphire crystal and date magnifier?
A: Yes, this model features a scratch-resistant sapphire crystal and Rolex’s Cyclops magnifier over the date window for improved legibility.

Q: Will the 40mm size suit most wrists, and can the bracelet be adjusted?
A: The 40mm case is a versatile size that suits many wrists and is often worn as a unisex style. This watch is sized to approximately 17 cm and comes with two additional link pieces, so sizing can be adjusted for a better fit.

Q: Is the 116710BLNR still in production?
A: No, this reference has been discontinued. That is one reason it remains especially popular among collectors and buyers who prefer the earlier Oyster-bracelet version of the blue-and-black GMT-Master II.

Q: What condition is this watch in?
A: According to the product information, it is in very good pre-owned condition with minimal traces of use on the case and bezel, plus a few hairline scratches on the bracelet and clasp. The crystal is described as excellent.

Q: What is included with this watch, and how do you confirm authenticity?
A: This piece is delivered with original box, booklet, warranty card, hangtags and two link pieces. A Retro Tale states that all watches are 100% original, professionally authenticated and sold with a 12-month mechanical guarantee.