Omega Seamaster 300 Large Model

Omega Seamaster 300 ref. 168.1623 – Automatic – ca. 1999

A modern Omega classic from the late-1990s Seamaster Professional era.
This Seamaster 300 ref. 168.1623 combines true tool-watch functionality with the refined finishing Omega became known for during this period. The black dial with applied markers, sword hands and helium escape valve at 10 o’clock gives it an unmistakable professional dive-watch presence.

Robust, versatile, and timeless — a watch that works just as well as a daily wearer as it does as part of a serious Omega collection.

Technical background
Reference 168.1623 is fitted with the Omega cal. 1120, an automatic chronometer-grade movement based on the ETA 2892-A2 and heavily upgraded by Omega. Known for its reliability, slim profile and excellent long-term performance.

The serial number 60478XXX dates this example to circa 1999, placing it firmly in the pre-co-axial Seamaster Professional generation — increasingly appreciated by collectors for its build quality and classic proportions.

Tech sheet

• Model: Omega Seamaster 300

• Reference: 168.1623

• Serial: 60478XXX

• Year: ca. 1999

• Case size: approx. 41 mm

• Movement: Omega cal. 1120, automatic

• Dial: Black

• Crystal: Sapphire

• Bezel: Black unidirectional dive bezel

• Lug width: 20 mm

• Condition: Very good

• Warranty: 2-year warranty