Omega Seamaster Seamaster Chronograph

Reference ST 176.007

About this watch

The Omega Seamaster ST 176.007 Seamaster Chronograph is a stunning timepiece that effortlessly combines elegance with functionality. Produced between 1972 and 1976, this classic beauty is not just a tool for telling time; it’s a piece of history, a statement of style, and a marvel of horological engineering. At the heart of the ST 176.007 is the Omega caliber 1040, an automatic chronograph movement that’s as robust as it is reliable. This movement is actually Omega’s version of the Lemania 1340, known for its durability and precision. With a 40-hour power reserve and 17 jewels, this movement is designed for performance. The design of the Omega ST 176.007 is truly captivating, with a cushion-shaped case measuring 38.50 mm in diameter that strikes the perfect balance between boldness and wearability. The sunburst blue dial is one of the most striking features of this timepiece, offering versatility and sophistication. Whether you’re at the office or enjoying a night out, this watch is sure to enhance your style with its elegant design and robust functionality.

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Key Features

Omega caliber 1040 automatic chronograph movement
Cushion-shaped stainless steel case measuring 38.50 mm in diameter
Sunburst blue dial with stick indexes and hands
60 meters water resistance, suitable for everyday wear
Plexiglass crystal offers a soft, warm look
Robust automatic chronograph movement with 40-hour power reserve
Date complication ensures precise timekeeping

Specifications

Brand

Omega

Family

Seamaster

Model

Seamaster Chronograph

Reference

ST 176.007

Movement

1040

Movement Features

Small Seconds, Minutes, Additional 24 Hour Hand (adjustable)
Date
Chronograph

Case

Stainless Steel 38.5mm

Dial Color

Blue

Crystal

Plexi

Water Resistance

Current Listings

Omega Seamaster Ploprof 1200M 224.32.55.21.04.001 White Dial 55mm 2025

Omega - 224.32.55.21.04.001 · $7,925

This Omega Seamaster Ploprof 1200M features a white dial, fully lumed sapphire capped bezel, and a 55mm stainless steel case. It comes as a full set with two factory straps and a full factory warranty.

Condition: Very good pre-owned condition with light wear
Case size: 55 x 48mm
Diameter: 55mm
Water resistance: 1200m

Posted at

Jan 14, 2026, 4:07 PM

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Omega Seamaster Planet Ocean 600M Chrono 215.30.46.51.99.001 Grey 45mm 2025

Omega - 215.30.46.51.99.001 · $7,725

The Omega Seamaster Planet Ocean Chronograph is a modern watch that balances wrist presence and comfort, featuring a 45.5mm stainless steel case and Calibre 9900 automatic movement.

Condition: Excellent, near mint condition with faint wear on the bracelet, case, and strap
Case Size: 45.5mm diameter
Water Resistance: 600m depth rating
Movement: Calibre 9900, automatic, Master Chronometer

Posted at

Jan 14, 2026, 3:46 PM

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OMEGA Seamaster Diver 300M 210.30.44.51.01.001 $5250 plus label

OMEGA - 210.30.44.51.01.001 · $5,250

This OMEGA Seamaster Diver 300M Chronograph is a waterproof watch with a clean crystal and bezel, and comes with various accessories.

Condition: good pre-owned condition
Case Sides Condition: worn
Crystal Condition: clean
Bezel Condition: clean

Posted at

Jan 14, 2026, 2:40 PM

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Omega Seamaster Aqua Terra 38mm 150M 220.12.38.20.01.001 No Box or Papers, Extra Alligator Leather Strap, Good Condition

Omega - 220.12.38.20.01.001 · $4,000

The Omega Seamaster Aqua Terra 38mm is a tribute to OMEGA’s rich maritime heritage, with a symmetrical stainless steel case and black dial featuring a horizontal “teak” pattern. It's powered by the OMEGA Master Chronometer calibre 8800, certified at the industry’s highest standard. The watch includes an extra authentic Omega Alligator leather strap.

Condition: Good, with a few scratches
Case diameter: 38mm
Water resistance: 150m (500ft)
Movement type: Self winding

Posted at

Jan 14, 2026, 2:22 PM

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Omega Seamaster Planet Ocean Titanium - 42mm - Complete Set

Omega - 232.90.42.21.03.001 · $4,650

The Omega Seamaster Planet Ocean 600M is a titanium watch with a blue ceramic case, 42mm size, and a water resistance of 600 meters / 2000 feet. It comes with various accessories and is in excellent condition.

Condition: Excellent all-around condition
Case material: blue ceramic - titanium
Bracelet type: titanium bracelet
Water resistance: 600m / 2000ft

Posted at

Jan 14, 2026, 11:24 AM

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