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The Omega Seamaster 120 is a highly versatile vintage dive watch that reflects Omega’s continued development of robust yet wearable sports watches during the late 1960s and 1970s. Positioned as a more compact and refined alternative to the professional Seamaster 300, the Seamaster 120 was designed to offer reliable underwater capability while maintaining everyday wearability.
Introduced in the late 1960s, the Seamaster 120 belongs to a generation of Omega dive watches that benefited from improved case construction, stronger water resistance, and more modern proportions. Many examples were produced with cases manufactured by Ervin Piquerez S.A. (EPSA), a respected Swiss case maker known for its expertise in professional waterproof case systems.
With its clean dial design, functional lume plots, and distinctive rotating bezel, the Seamaster 120 captures the utilitarian spirit of the era while remaining understated and elegant on the wrist. Today, it is appreciated as a highly wearable vintage sports watch with strong originality and classic Omega design language.
Omega Seamaster 120 | Serviced | ref. 166088 from 1970s
MOVEMENT: Serviced automatic movement, Caliber 1002. Running well.
DIAL: Original matte black dial in good condition. Light, even patina to tritium markers and applied elements. Overall clean appearance with intact lacquer layer.
GLASS: Mineral crystal in excellent condition with no visible scratches.
HANDS: Original hands with tritium lume. Matching patina consistent with dial.
CASE: Stainless steel case in good overall condition. Strong lines with visible surface scratches and honest wear, including marks near 6 o’clock on the case top.
BEZEL: Bi-directional blue bezel in good condition with general wear and scratching. Notable mark present between 9 and 11 o’clock.
CROWN: Screw-down crown in good condition, operating correctly.
BRACELET: Good condition with almost no stretch.
BRAND: Omega
MODEL: Seamaster 120
REFERENCE: 166.088
YEAR: 1970s
MOVEMENT: Omega Caliber 1002, automatic
CASE DIMENSIONS: 40 mm diameter, 11.2 mm thickness
CASE MATERIAL: Stainless steel
GLASS: Mineral crystal
DIAL: Matte black tritium dial
LUME: Tritium
BRACELET/STRAP: Not specified
LUG WIDTH: 20 mm
BOX & PAPERS: No box, no papers
TAX: Differential taxation according to §24 UStG
