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The latest version, introduced in 2021, replaced the long-standing Calibre 1861. Key improvements include: buy omega speedmaster professional
: The new five-link bracelet features a much more dramatic taper (20mm down to 15mm) and a new clasp with a micro-adjustment system for comfort. Which One to Buy? The is widely considered one of the most
: The watch is now a Master Chronometer , guaranteeing accuracy of 0 to +5 seconds per day. The Current Model (Calibre 3861) The latest version,
: It can withstand magnetic fields up to 15,000 Gauss, making it nearly "magnet-proof" in modern environments full of electronics.
: Unlike previous vintage-spec models, you can now stop the seconds hand to set the time precisely.