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

2024 Omega Seamaster Professional

Title: [Wts] 2024 Omega Seamaster Professional
Description: Description:

Posted at

Jan 21, 2026, 12:41 AM

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2025 Omega Seamaster

Omega - 210.30.42.20.03.001 · $4,499

2025 Omega Seamaster Professional, with a 42mm case size and Calibre 8800 movement, featuring a blue dial with waves, stainless steel case material, and 300M water resistance.

Condition: Pre Owned - Cosmetic Condition: 9/10
Case Size: 42mm diameter
Movement: Calibre 8800
Power Reserve: 55 Hours

Posted at

Jan 21, 2026, 12:39 AM

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1969 Omega Seamaster Chronometer ref. 168.024 w/ Cal. 564, freshly serviced Dec 2025, quickset date, $1090 shipped

Omega - 168.024 · $1,090

Up for sale is a classic late-60s Omega Seamaster Chronometer ref. 168.024, powered by the excellent Cal. 564. The watch features chronometer-rated accuracy and practical quickset date functionality.

Condition: Very Good
Case Size: 35mm
Water Resistance: Note: Not waterproof due to vintage construction
Crystal Type: Plexiglas

Posted at

Jan 20, 2026, 8:58 PM

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Up for sale is my Omega Seamaster 2220.80, featuring an automatic co-axial cal 2500 movement and measuring at 41mm.

Condition: 8.8/10 - great condition with minimal marks/hairlines
Case size: 41mm diameter
Bezel insert condition: scratches/fading, has a spare clean OEM bezel insert (9.5/10)
Movement: automatic co-axial cal 2500

Posted at

Jan 20, 2026, 8:42 PM

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Omega Seamaster GMT 50th Anniversary 2234.50 Box and Card, Seamaster Bracelet - $2,190

Omega - 2234.50 · $2,190

The Omega Seamaster GMT 2234.50 is a 41mm automatic watch with a steel case and original Omega steel bracelet. It has a sapphire crystal and all other parts are clean.

Condition: great condition with minimal hairlines/marks on case, caseback, and bracelet
Bracelet size: up to 7.25 inch wrists
Case diameter: 41mm

Posted at

Jan 20, 2026, 8:39 PM

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Vintage Gold CAPPED Omega Seamaster Jumbo 166.032 36mm - $790

Omega - 166.032 · $790

This vintage Omega Seamaster Jumbo 166.032 measures at 36mm with the Omega 750 movement and features a gold capped case.

Condition: good condition, minimal hairlines/usage marks
Movement: Omega 750
Case size: 36mm diameter
Case material: gold capped

Posted at

Jan 20, 2026, 8:37 PM

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Omega Seamaster Planet Ocean 45.5mm Full Kit

Omega - Planet Ocean 45.5mm · $3,500

A Omega Seamaster Planet Ocean 45.5mm watch for sale, with additional details including box, papers, and various straps.

Condition: Light wear, a few tiny scuffs and scratches on the lugs and case
Water Resistance: 600 meters
Movement: Caliber 2500, Co-Axial Escapement, Chronometer

Posted at

Jan 20, 2026, 5:42 PM

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Omega Seamaster Planet Ocean 600M - Blue Ceramic 43.5mm - Complete Set

Omega - 21530442103001 · $4,500

The Omega Seamaster Planet Ocean 600M is a robust dive watch with a depth rating of 600 meters, featuring a blue ceramic dial and unidirectional bezel.

Condition: Unworn/mint condition
Case size: 43.5mm diameter
Depth rating: 2000 feet / 60 bar
Movement: Omega Calibre 8900 automatic chronometer

Posted at

Jan 20, 2026, 2:45 PM

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