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 2531.80 41mm Bond Box and Card - $2,690

Omega - 2531.80 · $2,690

Up for sale is my very good condition Omega Seamaster 2531.80, a 41mm watch with Omega Caliber 1120 self-winding movement.

Condition: Very good condition
Case Size: 41mm diameter
Movement Type: Omega Caliber 1120 self-winding movement

Posted at

Apr 5, 2026, 10:02 PM

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Omega Seamaster Planet Ocean 2201.51 42mm Box and Card S - $2,990

Omega - 2201.51 · $2,990

This Omega Seamaster Planet Ocean 2201.51 is a high-end watch with an automatic movement and a steel case on original Omega bracelet.

Condition: Very good condition for its age
Movement: Omega Calibre 2500 movement
Bracelet Size Fit: up to 7-7.25 inch wrists

Posted at

Apr 5, 2026, 9:56 PM

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Omega Seamaster Planet Ocean 2201.50 42mm - $2,890

Omega - Planet Ocean 2201.50 · $2,890

This listing is for a Omega Seamaster Planet Ocean 42mm watch.

Case size: 42mm

Posted at

Apr 5, 2026, 9:27 PM

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Omega Seamaster Professional 300M 210.30.42.20.01.010 – Full Set + 2025 Service — $4,899 Shipped 🔥🔥

Omega - 210.30.42.20.01.010 · $4,899

This Omega Seamaster Professional 300M features a 42mm stainless steel case with a black wave dial and Master Chronometer movement. It's recently been fully serviced by Omega Boutique in March 2025.

Condition: Great overall, some light wear on case and clasp
Case size: 42mm diameter
Movement type: Master Chronometer
Service date: March 2025

Posted at

Apr 5, 2026, 9:24 PM

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Omega Seamaster Chronostop (chrono function not working)

Omega - Seamaster Chronostop · $2,000

This Omega Seamaster Chronostop is for sale with its chrono function not working. The listing includes additional details on a third-party website.

Posted at

Apr 5, 2026, 4:17 PM

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[US] Omega Seamaster Planet Ocean Chrono 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,550

This Omega Seamaster Planet Ocean Chrono 600m features a black dial and measures 45.5mm in diameter.

Condition: Fantastic condition with minor hairlines
Case Size: 45.5mm diameter
Water Resistance: 600m depth rating

Posted at

Apr 5, 2026, 1:34 PM

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[US] Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm - 210.20.42.20.03.002 - Full Set

Omega - 210.20.42.20.03.002 · $7,075

Up for sale is an Omega Seamaster SMP300 - Blue Dial - Sedna Gold - 42mm Watch functions perfectly mechanically, without issue.

Condition: Fantastic condition with minor hairlines
Case size: 42mm diameter

Posted at

Apr 5, 2026, 1:29 PM

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[US] Omega Seamaster SMP300 Titanium NTTD - 210.90.42.20.01.001 - Full Set

Omega - 210.90.42.20.01.001 · $8,450

Up for sale is an Omega Seamaster SMP300 Titanium NTTD - Full Set Watch functions perfectly mechanically, without issue.

Condition: Fantastic condition with minor hairlines on case, clasp, or bracelet
Bracelet type: titanium mesh
Included items: outer box, inner leather roll, user manual, purchase receipt, pictogram card, master chronometer card, and warranty card

Posted at

Apr 5, 2026, 1:24 PM

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Omega Seamaster Planet Ocean 600m, 232.90.42.21.03.00, 42mm with titanium case and bracelet, blue dial and bezel, box & papers

Omega - 232.90.42.21.03.00 · $4,600

This Omega Seamaster Planet Ocean 600m features a 42mm titanium case, blue dial, and titanium bracelet, along with a helium escape valve, screw down crown, and exhibition case back. It's a classic dive watch with functional features.

Condition: Good, previously cherished condition with scratches present on underside of bottom left lug from bracelet removal
Case diameter: 42mm
Bracelet material: Titanium
Water resistance: 600m

Posted at

Apr 5, 2026, 12:36 PM

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