Wristwatch: rare, early Gübelin “Ipso Matic” with calendar and moon

Ca. Ø32 x 43mm, original steel case, serial number 100055, Felsa 693 automatic movement, original dial with luminous numerals, full calendar with moon phase, luminous hands, in working order and in sensational condition, presumably unworn, circa 1950.

Estimación:-

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