IWC MARK XI 6B/346

IWC - Mark XI RAF Issued Watch - Hooked 7 Dial - Case Back Marked 6B/346 - c.1950

IWC SKU: 4198cs IWC - Mark XI RAF Issued Watch - Hooked 7 Dial - Case Back Marked 6B/346 - c.1950 A 1950 RAF-issued IWC Mark XI featuring a rare Hooked 7 dial, tritium lume and legendary calibre 89 movement Case Stainless Steel Box No Dial Black Papers No £7,150.00GBP Vintage Watch Specialist Buyer Protection - 12 Month Warranty Included - Authenticity Guarantee - Fully Insured Next Day Delivery Watch Description Watch Specification IWC has a long-standing association with military timekeeping, producing robust and highly legible watches for various armed forces throughout the 20th century. While best known for its pilot’s watches, the brand also supplied timepieces built to meet strict military requirements, focusing on reliability, clarity and precision. Its involvement with British military-issued watches reflects this commitment, with designs tailored for practical use in demanding conditions, reinforcing IWC’s reputation for functional, purpose-driven watchmaking. What's on Offer An icon of British military timekeeping, this 1950 IWC Mark XI represents one of the most respected RAF-issued watches ever produced, built to exacting Ministry of Defence standards. The matte black dial is all about clarity, with crisp Arabic numerals, a precise minute track and beautifully aged tritium lume, denoted by the circled “T.” A particularly appealing detail here is the hooked 7 , a subtle dial variation prized by collectors and indicative of period-correct production. The stainless steel case shows honest wear consistent with its age and service, while the fixed bar lugs have been removed and replaced with traditional spring bars which may suit some people as it can be worn on any traditional strap it can still however be used with a NATO-style strap as we have fitted for our images in classic olive green. If you prefer however we can have the fixed bars refitted for you before delivery. On the case-back, the military engravings remain visible, including the 6B/346 designation, confirming its RAF issue and adding real historical weight. Powered by the legendary IWC calibre 89, one of the finest manual-wind movements of its era, this is a watch built for precision and longevity. A true military classic—authentic, nuanced, and highly collectible. Case Stainless Steel Box No Dial Black Papers No Crystal Plexiglass Model Ref Mark XI Winding Manual Bracelet NATO Style Movement Type Mechanical Condition 8/10 Calibre 89 Date of Issue 1950 Jewels 17j Warranty 12 Months Power Reserve u/k Lug Height 45mm Width 36mm Lug width 18mm Wrist Size Adjustable Vintage Watch Specialist's Authenticity Guarantee Guaranteed Authenticity All of our watches are approved by our in-house authenticity check Every watch is inspected meticulously by our experts Any deviations from the original condition or specifications are listed Worldwide shipping Free UK shipping Subsidised international shipping All shipping tracked and insured Warranty and Returns All watches are covered by our free 12 month warranty (unless otherwise stated) All watches are sold serviced and fully functioning (unless otherwise stated) Please see our full warranty and returns policy here