The is widely considered one of the most essential pieces in horology. While it hasn't changed much aesthetically since its 1957 debut, the current generation (Ref. 310.30.42.50.01.001) features critical technical upgrades that make it a formidable modern daily wearer. The Current Model (Calibre 3861)
: 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 watch is now a Master Chronometer , guaranteeing accuracy of 0 to +5 seconds per day.
Omega Speedmaster Professional Moonwatch 311.33.42.30.01.001
