Omega Ref. 2998-4, chronograph, minute and hour counters, black dial, calibre 321; “Speedmaster Professional” so-called “Ed. White”; stainless steel | | Hong Kong, May 28, 2022
Omega Ref. 2998-4, chronograph, minute and hour counters, black dial, calibre 321; “Speedmaster Professional” so-called “Ed. White”; 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 black insert, black colour dial with radial luminous indexes, black colour auxiliary dials, subsidiary seconds at 9 and three horological complications:, · 1/5 second chronograph (activated by the two round-shaped push-pieces located on the case-band) 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)Case-back stamped in the centre with the Omega logo, the seahorse and the name “Speedmaster”.
