Seamaster 120M 2511.81 Blue Wave, Full Set

• Ref. 2511.81, Cal. 1538 quartz

• Case: 36mm stainless steel, 120m 

• Dial: Blue wave, date function

• Grade: AB — fine scratches on case, caseback, and bracelet; no significant crystal scratches

• Battery replaced July 2026, confirmed running and keeping time

• Bracelet: Original stainless steel, includes 1 spare link

• Included: Serialized original hang tag, warranty cards, spare link, plus a matching service box (not original to this specific watch, included to complete the presentation)

The Seamaster 120M’s blue wave dial has become one of Omega’s most recognizable looks — sharing its diver-inspired styling with the 300M family in a more accessible everyday size. This example comes with genuine hang tag and warranty cards, a rare survival for a piece this age, plus a spare link and presentation box. Freshly serviced with a new battery, it’s ready to wear — a well-documented, honestly-graded example of a design that only keeps growing in demand.