Omega · Family: Speedmaster
The Omega Speedmaster Chronoscope (ref. 329.30.43.51.02.001) is the 43mm version that adds two extra scales — pulsations and telemeter — to the Speedmaster's traditional tachymeter scale, on a steel bezel with an aluminum insert. As of August 2026, Cazador has 0 verified price observations; the 2021 launch price was €8,600. Its differential trait: it runs Caliber 9908, a hand-wound version of the automatic Caliber 9900.
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The Speedmaster holds the distinction of being the first watch with a tachymeter scale built into the bezel instead of printed on the dial, a feature Omega introduced in 1957 alongside the Railmaster and Seamaster 300 as part of a trio of tool watches for professionals. The Chronoscope, introduced in 2021, revives that multifunction-instrument spirit by adding two more scales: a pulsations scale, for measuring heart rate, and a telemeter scale, for calculating distance to a visible and audible event.
The 43mm steel case, 12.8mm thick, is slightly wider than the 42mm Speedmaster Professional Moonwatch, though proportionally thinner. The steel bezel with an aluminum insert houses all three scales — tachymeter on the outer edge, pulsations and telemeter spread across the rest of the dial — a design reminiscent of mid-20th-century multi-scale chronographs.
Beneath the silver dial sits Caliber 9908, a hand-wound version of the automatic Caliber 9900, distinguished by a new three-quarter plate. It retains the same column-wheel and vertical-clutch architecture, beats at 4Hz, and delivers 60 hours of power reserve thanks to its double barrel, while also carrying Master Chronometer certification with magnetic resistance above 15,000 gauss.
The steel bracelet features a clasp with a push-button easy-adjustment system, able to extend the length by up to 2.3mm without tools. Introduced in Milan in 2021 at a launch price of €8,600, the Chronoscope joined the Speedmaster catalog as a multifunction alternative to the classic Moonwatch.
We don't have verified price observations for this reference. The 2021 launch price was €8,600, though we don't publish a current market range without backed data.
It's hand-wound. It runs Caliber 9908, a manual-winding version of the automatic Caliber 9900, sharing the same column-wheel and vertical-clutch architecture.
It measures heart rate: you time a set number of heartbeats and the chronograph hand points directly to beats per minute on the printed scale.
It calculates distance to an event that can be both seen and heard — like lightning or gunfire — by timing the interval between the flash and the sound.
The Chronoscope has a 43mm case versus the Moonwatch's 42mm, runs the hand-wound Caliber 9908 instead of the 3861, and adds pulsations and telemeter scales alongside the tachymeter.
It's rated to 50 meters, adequate for daily wear but lower than Omega's dive watches.
Yes, Caliber 9908 carries METAS Master Chronometer certification, with magnetic resistance above 15,000 gauss.