This is a Rolex GMT‑Master II Ref. 126710BLNR (aka “Batgirl”) from 2021 in Oystersteel, with the blue‑and‑black Cerachrom bezel and black dial. It is a 40 mm automatic dual‑time watch powered by Rolex calibre 3285, water‑resistant to 100 m, sapphire crystal with a cyclops magnifier, and fitted on a Jubilee bracelet. This example is full set, comes with the purchase receipt, box, papers, and all original accessories; condition is excellent with very light signs of wear consistent with careful use. On the wrist it offers a sporty elegance — robust yet refined, and ideal for travel with its independently adjustable hour hand. The bezel insert shows vibrant colour contrast, the bracelet remains reasonably tight, and the case retains crisp edges. Signature features include the bi‑directional 24‑hour bezel, GMT hand, and Rolex’s Superlative Chronometer certification.