8501

About the Omega 8501

The 8500 is Omega's first in-house co-axial caliber, with two barrels in series for a 60-hour reserve, a free-sprung balance, 39 jewels and a 29 mm diameter at 25,200 vph. The 8501 is mechanically identical; the rotor and balance bridge are made in the gold of the case so that the view through the display back is consistent. Omega applies the same convention to the 8521, 8701 and 8807.

In the library it sits under 24 Aqua Terras, 19 Constellations, 10 De Villes including the red gold Hour Vision, and 6 Planet Oceans. Cases run from 38 mm to 45.5 mm, with 38 mm and 38.5 mm the most common at 19 and 18 references.

The 8900 is the Master Chronometer successor to the whole 8500 family.