B-1 ‘Avro Vulcan 50 Years’ Limited Edition: A68362 in grey dial with special ‘Avro Vulcan 50 Years 1952–2002’ text; limited to 50 pieces to support the Vulcan XH558 restoration. COSC quartz Cal. 68; 43.2 mm steel; slide‑rule bezel; sapphire; 50 m WR. Sources: Chrono24 B‑1 overview mentioning Vulcan LE; SW Watches listing; WorthPoint examples.