BE-83AR Flyback chronograph. Diameter 13 1/4", height 7.90mm, 39 Jewels, three-legged Glucydur balance with Nivarox 1 mainspring 28,800 bph. Incabloc shock protection and 46 hour power reserve. Perlage and blued screwed decoration with hand crafted stainless steel and Bombe rotor.

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