1960s Lemania monopusher chronograph made for the Royal Navy

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Built to the exacting standards of the British Admiralty, this Lemania monopusher was issued to Royal Navy pilots. The single-button operation ensured that timing could be started, stopped, and reset with foolproof simplicity during flight. Its asymmetrical case—designed to protect the crown and pusher from impact—has become an icon of functional military design.