Flagship heritage a tribute to the brand's innovative spirit 38. 5mm stainless steel case presented on a brown alligator leather strap silvered sunray dial with tapered gilt hands and a moon phase display powered by the l899 calibre movement an honour to history and classic design inovative spirit combining iconic aesthetics from original models with modern watchmaking techniques, longines has created the heritage classic collection to serve as a tribute to the brand's innovative brand spirit. Each case back is stamped with an emblem to honour this history and illustrate advanced expertise. Impressive performance this 38. 5mm model pairs a robust stainless steel case with a classic brown alligator leather strap, secured with a buckle. The silver tone sunray dial features gilt tapered hands filled with super lumi nova™ for complete clarity. Applied indexes, a moon phase display, and date indicator at 6 o'clock complete the look. The automatic l899 calibre movement powers this flagship timepiece with spectacular precision and a 72 hour power reserve.