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Feb 25, 2026 • 20:01
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|Omega
Speedmaster Professional
Ref. 310.30.42.50.01.001
|2024
|ChronographTachymeter
The Legacy
A Story Worth Telling
“On July 20, 1969, Buzz Aldrin stepped onto the lunar surface with a Speedmaster strapped to his wrist over his spacesuit. That moment immortalised this chronograph as the Moonwatch — the only watch flight-qualified by NASA for extravehicular activity. The modern Cal. 3861 movement maintains the hand-wound soul that collectors revere while adding a co-axial escapement and Master Chronometer certification.
Omega Heritage
Technical Specifications & Market
The Details, Deconstructed
The Caliber
Cal. 3861
Power Reserve50 Hours
Frequency21,600 vph
Jewels26
Dimensions
42.0 mm × 13.2 mm
Case Diameter42.0 mm
Thickness13.2 mm
Lug-to-Lug47.0 mm
MaterialStainless Steel
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CrystalHesalite
Water Resistance50 m
Bracelet / StrapStainless Steel
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In the Wild
Horologist Reviews
Expert Perspectives
3.0
based on 1 review