Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Diamond / White / Alligator

Reference 232.18.42.21.04.001

Omega Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Diamond / White / Alligator

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial 42 is a stunning blend of elegance and functionality, featuring a 42mm stainless steel case with a rotating bezel and sapphire crystal glass. This luxury timepiece boasts exceptional water resistance of 600 meters, making it perfect for professional divers. The automatic movement, Omega caliber 8500, operates at 25,200 vibrations per hour and features a Co-Axial escapement for enhanced accuracy and longevity. With a power reserve of 60 hours, this watch is reliable and precise, certified as a chronometer after rigorous testing. The white dial with mixed indexes provides a fresh aesthetic, complemented by an alligator leather strap that enhances the overall elegance of the watch. Whether you're attending a formal event or diving into the deep blue, this watch is versatile enough to adapt to any situation.

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MSRP: $17,100

Market Price: $5,683

Key Features

42mm stainless steel case
Rotating bezel with 0-60 (Dive) markings
Sapphire crystal glass for scratch resistance
Omega caliber 8500 automatic movement
Co-Axial escapement for enhanced accuracy and longevity
Water resistance of 600 meters (2000 feet)
Chronometer certified after rigorous testing

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

Seamaster Planet Ocean 600M Co-Axial 42 Stainless Steel / Diamond / White / Alligator

Reference

232.18.42.21.04.001

Movement

8500

Movement Features

Hours, Minutes, Seconds
Date
Chronometer, Co-Axial Escapement

Case

Stainless Steel 42mm

Dial Color

White

Crystal

Sapphire

Water Resistance

600

Current Listings

Omega Seamaster Planet Ocean GMT “Oreo” - 215.30.44.22.01.001 - Price Reduced!

Omega - 215.30.44.22.01.001 · $4,695

This Omega Seamaster Planet Ocean GMT features a 43.5mm size and has been well-maintained, showing only light scratches on the clasp and bracelet.

Condition: very good with minor wear
Case Size: 43.5mm diameter
Water Resistance: 300m depth rating
Accuracy: +/-0 seconds per day

Posted at

Feb 26, 2026, 12:58 PM

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2017 Omega Seamaster Planet Ocean 600m 45.5mm 232.30.46.21.01.002 | FRESH SERVICE!

Omega - 232.30.46.21.01.002 · $3,250

A 2017 Omega Seamaster Planet Ocean 600m in excellent condition, recently serviced and running great.

Year: 2017
Case size: 45.5mm
Water resistance: 600m

Posted at

Feb 25, 2026, 5:19 PM

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Omega Seamaster Planet Ocean 600M 232.30.42.21.01.003 | 2024 Full Set

Omega - 232.30.42.21.01.003 · $3,750

The seller is listing a 2024 Omega Seamaster Planet Ocean 600M, a 42mm watch in excellent condition with some minor cosmetic imperfections.

Condition: Pre-Owned
Case size: 42mm
Water resistance: 600m
Service history: Unknown

Posted at

Feb 24, 2026, 9:40 PM

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Omega Seamaster Planet Ocean GMT “Oreo” 215.30.44.22.01.001 — Full Set

Omega - 215.30.44.22.01.001 · $6,995

The Omega Seamaster Planet Ocean GMT “Oreo” is a modern 43.5mm watch with a black/white bezel and METAS Master Chronometer certification.

Condition: Excellent overall condition
Case Size: 43.5mm
Case Material: Stainless steel
Bezel Type: Black/White timing bezel

Posted at

Feb 24, 2026, 6:59 PM

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Omega Seamaster Planet Ocean 2201.50 42mm Full Kit - $3,250

Omega - 2201.50 · $3,250

The Omega Seamaster Planet Ocean 2201.50 is a 42mm automatic watch with an Omega Calibre 2500 movement, available as a full kit including double box and triple cards.

Condition: Very good condition with minimal marks/hairlines on the case, caseback, and bracelet.
Case size: 42mm diameter
Movement: automatic Omega Calibre 2500
Bracelet material: steel

Posted at

Feb 23, 2026, 9:19 PM

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2020 Omega Seamaster Planet Ocean Black Dial with Orange Bezel on Bracelet 215.30.44.21.01.002 B+P

Omega - 215.30.44.21.01.002 · $4,700

This 2020 Omega Seamaster Planet Ocean is a rugged yet refined dive watch, featuring a sharp black dial and matching black and orange ceramic bezel. It offers serious durability along with Omega’s reliable in-house movement for everyday performance you can count on.

Condition: Good condition, some signs of wear on clasp, bracelet, case, and bezel
Case diameter: 43.5mm
Crystal: Sapphire crystal
Bracelet material: Stainless Steel

Posted at

Feb 23, 2026, 1:09 PM

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2021 Omega Seamaster Planet Ocean �Oreo� GMT -215.30.44.22.01.001 - BPs + Extra

Omega - 215.30.44.22.01.001 · $5,700

2021 Omega Seamaster Planet Ocean 'Oreo' GMT is a luxury watch with minor wear on the case.

Condition: Very Good Condition
Case Wear: Minor
Box Condition: Outer white box flap is loose
Accessories: Double Box,All 3 Omega Cards (Warranty dated 6/8/21),Hangtag, Manual, Customer Service papers,Extra Black/white Rubber Strap

Posted at

Apr 4, 2025, 3:36 PM

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Omega SEAMASTER PLANET OCEAN 600M STEEL SUMMER BLUE DIAL 39.5MM 2024 FULL SET

Omega - 215.30.40.20.03.002 · $5,175

This is a 2024 Omega Seamaster Planet Ocean 600m in stainless steel with a blue ceramic bezel and brushed ceramic blue gradient dial.

Condition: Excellent, unpolished condition
Movement: Co-Axial Master Chronometer calibre 8900
Water resistance: 600m
Diameter: 39.5mm

Posted at

Apr 3, 2025, 9:35 PM

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Like New Omega Seamaster Planet Ocean Orange 600 Mt. 43.5 mm 215.32.44.21.01.001

Omega - 215.32.44.21.01.001 · $4,295

The Omega Seamaster Planet Ocean is a high-end diver's watch featuring a polished black ceramic dial, orange rubber bezel, and a stainless-steel case with a 43.5 mm diameter.

Condition: Like New
Case Size: 43.5mm
Case Thickness: 16.5mm
Between Lugs: 21mm

Posted at

Mar 28, 2025, 3:04 AM

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