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 Full Kit

Omega - 212.30.41.20.03.001 · $3,000

A full-kit Omega Seamaster Diver, ref. 212.30.41.20.03.001 is for sale, featuring a 41mm case and blue ceramic dial.

Condition: Excellent
Case Diameter: 41mm
Thickness: 13mm

Posted at

Mar 30, 2026, 4:35 PM

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BNIB Omega Seamaster Diver 300M 210.30.42.20.04.001 $5,350

Omega - 210.30.42.20.04.001 · $5,350

This Omega Seamaster Diver 300M features a black ceramic bezel, white enamel diving scale, and a polished white ceramic dial with laser-engraved waves.

Condition: Brand new in box with no issues
Case diameter: 42mm
Lug width: 20mm
Water resistance: 300m depth rating

Posted at

Mar 30, 2026, 12:15 PM

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Omega Seamaster Planet Ocean 600m 45.5mm 232.30.46.21.01.002 FULL SET

Omega - 232.30.46.21.01.002 · $3,375

Additional Details: Omega Seamaster Planet Ocean 600m for sale. This 45.5mm watch is a full set and has been polished before.

Condition: Pre-owned with polishing history
Case size: 45.5mm diameter
Water resistance: 600m

Posted at

Mar 30, 2026, 11:26 AM

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Omega Seamaster SMP300 Black Rubber Strap - Size Medium - 20mm - 032CVZ015752

Omega - SMP300 · $240

This is an Omega Seamaster SMP300 Black Rubber Strap in medium size, 20mm. It's a good condition strap with some minor cosmetic damage.

Condition: good condition, one small nick on the backside of the strap
Size: medium
Width: 20mm

Posted at

Mar 30, 2026, 7:37 AM

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Omega Seamaster 166.0126 - $650

Omega - 166.0126 · $650

Up for sale is my Omega Seamaster 166.0126 in very good condition, measuring 35mm with an automatic movement.

Condition: Very good condition, some hairlines and marks on the case and caseback
Case Diameter: 35mm
Movement Type: automatic
Case Condition Rating: 8.2/10

Posted at

Mar 29, 2026, 10:12 PM

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Omega Seamaster 2531.80 41mm Bond Box and Card - $2,600

Omega - 2531.80 · $2,600

Up for sale is my Omega Seamaster 2531.80, a self-winding watch with 41mm case size and original steel bracelet.

Condition: very good condition
Case size: 41mm diameter
Water resistance: not specified

Posted at

Mar 29, 2026, 10:01 PM

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Omega Seamaster Cal 552, Ref 14779 35mm, Original Beads of Rice Bracelet - $590

Omega - 14779 · $590

This Omega Seamaster Cal 552 measures at 35mm and features an automatic movement. The watch has a steel case and original beads of rice steel bracelet.

Condition: good condition for its age with minimal marks and hairlines
Bracelet type: original Omega beads of rice steel bracelet
Case size: 35mm
Movement: automatic Omega Cal 552 movement

Posted at

Mar 29, 2026, 9:42 PM

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