Omega Seamaster 120

The Omega Seamaster 120 Ref. 166.027 represents one of the most charming and versatile tool watches of the late 1960s. Produced around 1969, this reference embodies the spirit of the “skin diver” design — a lighter, slimmer alternative to the professional Seamaster 300, yet still engineered for underwater use. The stainless steel case measures 37mm excluding the crown, with sharp lyre lugs and a slim profile that makes it extremely comfortable on the wrist. Its black rotating bezel, with luminous triangle at 12, provides a clean and functional look. Plexy crystal has the original Omega logo.

The matte black dial features tritium luminous hour markers and baton hands, with a date window at 3 o’clock, offering perfect legibility in any condition. Powering the watch is Omega’s automatic caliber 565, part of the legendary 500 series, known for its robustness, precision, and quick-set date function.

With serial 27.xxx.xxx, this example dates precisely to 1969, making it a true vintage diver from the golden era of mechanical tool watches. Paired with a steel 1098/540 bracelet, the Seamaster 120 maintains its charm as both a functional diver and an elegant everyday companion. Collectors appreciate this reference for its balanced proportions, historical relevance, and rarity compared to its larger Seamaster counterparts. A perfect blend of sportiness and understated elegance, the Ref. 166.027 is a timeless Omega classic.