Omega featured the tachometer scale on the bezel, as opposed to the dial, for the first time on its tool watches with the original Speedmaster Ref. 2915. This innovative feature went on to define generations of Speedmasters, including the pictured Ref. 2998-2. Produced from 1959 - 1962, this reference is the second in the series of renditions of the reference 2998, bearing straight lugs, applied Omega logo to the dial, and the celebrated caliber 321 movement. Closing in 24 hours, our Hong Kong Watches Weekly sale is offering a fine example of this stainless steel chronograph, with bid starting at HK$80k/ US$10k. Visit our link in bio to browse the sale and take this piece home! #Sothebyswatches #SothebysOnline #WatchesWeekly #Omega #SpeedMaster #OmegaSpeedMaster #WatchGeek #WatchesofInstagram #wristwatch #watches #watchaddict