Description
OMEGA Ref. ST 145.012, chronograph, minute and hour counters, black dial, orange chronograph hand, calibre 321; “Speedmaster Professional” so-called “Ultraman”; stainless steel | Important Modern & Vintage Timepieces & Jewels | Hong Kong, December 5th, 2021 OMEGARef. ST 145.012, chronograph, minute and hour counters, black dial, orange chronograph hand, calibre 321; “Speedmaster Professional” so-called “Ultraman”; stainless steel, Stainless steel, manual-winding, vertical “tonneau”-shaped, gentleman’s wristwatch, water-resistant with screwed case-back, movement protected inside a soft iron calotte (protective container) against magnetic fields, bezel with ”tropicalised” black insert, black colour dial with radial luminous indexes, subsidiary seconds at 9 and three horological complications:, · 1/5 second chronograph (activated by the two round-shaped push-pieces), with orange chronograph hand, with tachometric scale graduated on the bezel for 500 units per hour, · Half-instantaneous 30-minute counter (subsidiary dial at 3 o’clock), · Dragging 12-hour counter (subsidiary dial at 6 o’clock)
