Mod. "El Primero", ref. 06.0050.400, '90
Diam. 40 mm
Gold case with screw back and tachymeter bezel. Black dial with applied geometric indexes, continuous seconds at 9, 12 hours at 6, date at 5 and 30-minute chronograph at 3.
Self-winding movement, cal. 400, recently serviced.
Very rare watch with black dial and in museum condition.
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