NAMED ONE OF WATCHPRO MAGAZINE’S “HOT 100” - THE TOP 100 INFLUENCERS OF THE U.S. WATCH INDUSTRY. HOW CAN WE SERVE YOU? Waltham Lone Eagle GMT Lindbergh Inspired Large Aviator’s Chronometer Chronograph, Limited Production - PVD Gorgeous Condition – Lindbergh Inspired – Big & Beautiful - 1 Year Warranty In 1927, Charles Lindbergh piloted the Spirit of St. Louis across the Atlantic, navigating with cockpit instruments produced by Waltham. That flight helped cement the company’s legacy as a trusted maker of precision instruments. During its Swiss revival in the early 2000s, Waltham paid homage to this heritage with the Lone Eagle collection, directly named after Lindbergh’s enduring nickname. Our example, the Lone Eagle GMT Chronograph, ref. BY-921, is among the most technically advanced models of that line. At its core is the ETA/Valjoux 7754 automatic caliber, certified by the COSC as a chronometer. This robust engine unites a 12-hour chronograph with a GMT hand, providing two of the most practical complications for aviators and international travelers. COSC certification assures accuracy, while the Valjoux platform is valued for long-term dependability and ease of service. Its aesthetic balances presence and clarity. The big 45mm black PVD steel case is bold and resilient. The cool reverse panda dial, with silver registers, luminous Arabic numerals, luminous sword-style hands, and a red GMT arrow, provides excellent legibility and striking contrast. A screw-down back engraved with an eagle roots it firmly within the Lone Eagle line. And its onion style crown carries on its vintage aviator’s legacy. Produced in much smaller numbers than mainstream Swiss chronographs of the same era, these Waltham Lone Eagles are uncommon. They offer collectors a compelling combination of authentic aviation heritage, chronometer-level technical credibility, and distinctive styling. We were fortunate to acquire our example is gorgeous condition – a 9.3 out of 10. Its case back has a few tiny hairlines. Otherwise it presents as mint. On the wrist the case presents as mint. Its dial and sapphire crystal are like new. Its overall presence is impressive. Detailed Appraisal: Manufacturer: Waltham Country of Origin: Switzerland Serial Number: B7927 Year: c. 2008 Model: Lone Eagle GMT Chronograph, ref. BY-921 Functions: Hours, Minutes, Automatic, Subsidiary Seconds, Date, GMT, Chronograph Movement Type: Automatic ETA/Valjoux 7754, COSC certified Beat Frequency: 28,800 bph Case Markings (outside): SW 45, B7927 Case Material: Black PVD stainless steel Case Measurements: 45mm not including the crown Case Back: Solid, engraved eagle motif, secured by six screws Case Condition: Its case back has a few tiny hairlines. Otherwise, it presents as mint. On the wrist the case presents as mint. Dial Color: Black with silver registers Dial Features: Black with silver subdials, luminous Arabic numerals, luminous hands, outer 24-hour track, red GMT hand Hands: Luminous cathedral-style hands, red GMT arrow hand Band: Leather, aftermarket, fully stitched, padded, brand new and unworn with slight handling wear Band Width: 24mm Crystal: Sapphire Warranty: 1-year international warranty. Your watch is important to us, and we will take care of it for its lifetime. We provide the best after sale care in the business with an extremely experienced team of four Master Watchmakers all of whom each have over thirty-five years of experience and a large number of parts. One used to be the watchmaker for an authorized Rolex dealership and was given special training by Rolex at their Beverly Hills Service Center. Box/Papers: BOX - Watch presentation box; PAPERS - Custom printed Certificate of Authenticity; New timing certificate; Certificate of Authenticity and Provenance from a well-known auction house SKU 8569