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.

Buy Now on Jomashop

This is an affiliate link

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 Diver 300M Black 210.92.44.20.01.001 ♦️Brand New 2024♦️

Omega - 210.92.44.20.01.001 · $6,354

The Omega Seamaster Diver 300M is a high-end diver watch featuring a black design and Calibre 65 movement.

Condition: Brand New
Status: WTS
Year: 2024
Set included: Full set (box & papers)

Posted at

Mar 24, 2026, 2:00 AM

Active

View listing on r/WatchExchange

1960s Omega Seamaster De Ville 166.020 cal.562 | Great Condition (Serviced) | $1200

Omega - 166.020 cal.562 · $1,200

This is a classic mid-1960s Omega Seamaster De Ville with a crosshair dial and an automatic movement. The watch features a compact, easy-to-wear case design with a warm vintage tone.

Condition: Great serviced condition
Case dimensions: 34-34.5mm diameter, 40mm lug-to-lug, 18mm lug width, 10-11mm thickness
Dial finish: champagne/silver sunburst
Movement features: 24 jewels, ~42-hour power reserve, semi-quickset date

Posted at

Mar 23, 2026, 11:59 PM

Active

View listing on r/WatchExchange

Omega Seamaster Cal 552, Ref 14779 35mm, Original Beads of Rice Bracelet - $690

Omega - 14779 · $690

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

Condition: Good condition for its age with minimal marks and hairlines on case, caseback, and bracelet.
Bracelet type: Original Omega beads of rice steel
Case material: Steel
Movement: Omega Cal 552

Posted at

Mar 23, 2026, 10:12 PM

Active

View listing on r/WatchExchange

1958 Omega Seamaster Ref. 2846 w/ Cal 501 — Large Hippocampus Caseback — $1050 OBO + label

Omega - 2846 · $1,050

A 1958 Omega Seamaster Ref 2846 with Cal 501 automatic movement and large hippocampus caseback, featuring a stainless steel case, silver sunburst dial, and aftermarket black snakeskin strap.

Condition: Good considering the age
Case diameter: 34.5mm
Movement: Cal 501
Dial type: Silver sunburst dial

Posted at

Mar 23, 2026, 9:55 PM

Active

View listing on r/WatchExchange

Omega Seamaster 166.0126 - $690

Omega - 166.0126 · $690

Up for sale is my very good condition Omega Seamaster 166.0126. This watch measures 35mm with automatic movement.

Condition: Very good condition, minor hairlines and marks on the case and caseback, light scratches on the acrylic crystal
Case size: 35mm diameter
Case material: gold plating

Posted at

Mar 23, 2026, 9:39 PM

Active

View listing on r/WatchExchange

OMega Seamaster Diver 300M Paris 2024 Edition | White Dial & Gold Hands | Ref. 522.21.42.20.04.001 | 42mm | 18K Yellow Gold & Steel | Full Set | 2024

OMega - 522.21.42.20.04.001 · $6,840

The Omega Seamaster Diver 300M Paris 2024 Edition is a luxury dive watch featuring a white ceramic dial and gold hands. It has a stainless steel case with an 18K yellow gold bezel and measures 42mm in diameter.

Condition: 9.0/10, AMAZING Condition
Case material: 18K Yellow Gold & Steel
Diameter: 42mm

Posted at

Mar 23, 2026, 9:22 PM

Active

View listing on r/WatchExchange

2023 Omega Seamaster Aqua Terra 41.5mm 150M Black 231.10.42.21.01.003 Full Set - $4,495

Omega - 231.10.42.21.01.003 · $4,495

This Omega Seamaster Aqua Terra Black is a 2023 model with a 41.5mm case and 150M water resistance, featuring a black dial.

Condition: Excellent condition with minimal signs of wear
Water Resistance: 150M depth rating
Year: 2023
Case Size: 41.5mm diameter

Posted at

Mar 23, 2026, 2:25 PM

Active

View listing on r/WatchExchange

Omega Seamaster 300m 210.32.42.20.03.001

Omega - 210.32.42.20.03.001

WTS Omega Seamaster 300m

Posted at

Mar 23, 2026, 1:52 PM

Active

View listing on r/WatchExchange

Omega Seamaster Aqua Terra Worldtimer “Summer Blue”

Omega - 220.10.43.22.03.002 · $8,455

The Omega Seamaster Aqua Terra Worldtimer features a stunning "Summer Blue" dial with laser-ablated continents, powered by the Omega Co-Axial Master Chronometer Caliber 8938. This watch is part of the Seamaster anniversary collection and comes with a complete set of accessories.

Condition: Brand new old stock and unworn
Case size: 43mm diameter
Movement: Omega Co-Axial Master Chronometer Caliber 8938
Complications: worldtimer

Posted at

Mar 23, 2026, 1:10 PM

Active

View listing on r/WatchExchange