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

NEW 2026 OMEGA SEAMASTER PLANET OCEAN 42MM BLUE DIAL 600M 217.30.42.21.01.002 COMPLETE SET!!

OMEGA - 217.30.42.21.01.002 · $7,850

A brand new Omega Seamaster Planet Ocean watch with a beautiful black dial and blue bezel, featuring a stainless steel case.

Condition: BRAND NEW/UNWORN
Dial color: Black/Blue
Case size: 42mm diameter
Water resistance: 600m depth rating

Posted at

Feb 13, 2026, 6:46 AM

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Omega Seamaster Aqua Terra 38 Green 220.12.38.20.10.001 MINT REDUCED

Omega - 220.12.38.20.10.001 · $4,499

A Omega Seamaster Aqua Terra 38 in mint condition, with box and papers included.

Condition: Mint
Original Strap: Original omega strap
Leather Strap Depth Rating: 200m water resistant (TUNS green leather strap)
Warranty: Watchmaxx warranty

Posted at

Feb 12, 2026, 8:16 PM

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Omega Seamaster 300m Automatic 2253.80 36.25mm

Omega - 2253.80 · $1,950

This Omega Seamaster 300m Automatic has been the seller's daily driver for two years, having accompanied them on various activities and travels while maintaining reliable timekeeping.

Condition: Used with signs of wear
Year: 2006

Posted at

Feb 12, 2026, 7:30 PM

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Omega Seamaster 300m Peter Blake 41mm Quartz 2264.50

Omega - 2264.50 · $2,399

This Omega Seamaster 300m Peter Blake is a quartz-powered timepiece featuring a 41mm case and a 7" bracelet.

Condition: like new/fresh polish
Bracelet length: 7 inches

Posted at

Feb 12, 2026, 4:21 PM

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Omega Seamaster 600m Planet Ocean 42mm 232.30.42.21.01.001

Omega - 232.30.42.21.01.001 · $2,999

A 42mm Omega Seamaster Planet Ocean with an automatic movement.

Model size: 42mm diameter
Bracelet length: 7.5 inches

Posted at

Feb 12, 2026, 4:19 PM

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1971 OMEGA PLOPROF SEAMASTER 600 all original

Omega - Ploprof Seamaster 600 · $5,500

A 1971 Omega Ploprof Seamaster 600, an iconic dive watch designed for deep-sea use. This all-original example is a rare Left Hand Drive model, requiring a service to run smoothly.

Condition: Lightly used, minor marks consistent with age
Case size: 44mm diameter
Movement service needed: true

Posted at

Feb 12, 2026, 3:48 PM

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Omega Seamaster Planet Ocean 600M 45.5mm 232.30.46.21.01.001 – $2,850

Omega - 232.30.46.21.01.001 · $2,850

This Omega Seamaster Planet Ocean 600M features a stainless steel case with a black dial and bezel, Omega Co-Axial automatic movement, and 600m water resistance.

Condition: Very good to excellent pre-owned with minimal wear
Case size: 45.5mm diameter
Water resistance: 600m / 2000ft
Movement type: Omega Co-Axial automatic movement

Posted at

Feb 12, 2026, 3:22 PM

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