Here we have a NOS Wyler Dynawind Heavy Duty 660 circa the 1960's. This watch is New Old Stock with original hang tag, Wyler sticker on the case back and original white Tropic rubber strap with original Wyler tang buckle. This watch is the Heavy Duty version of a line of dive watches Wyler offered in the 1960's. The automatic movement has an 'incaflex" balance which was designed to be more reliable under extreme condition. The all original bright orange dial is impressive and in excellent original condition with all original lume on the dial as hands. The bi-directional bezel moves smoothly. Great affordable 1960's dive watch.
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