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 8900 Blue 43.5m 215.30.44.21.03.001 under warranty

Omega - 215.30.44.21.03.001 · $4,600

A used Omega Seamaster Planet Ocean 8900 Blue model, featuring a 43.5m diameter case and under warranty until October 2027.

Condition: Good
Water Resistance: 200m depth rating
Warranty Valid Until: October 2027

Posted at

Mar 7, 2026, 2:12 PM

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Omega Seamaster Planet Ocean 8500 Titanium 232.90.46.21.03.001 45.5mm

Omega - 232.90.46.21.03.001 · $4,600

This Omega Seamaster Planet Ocean is a titanium model with a 45.5mm case size.

Condition: Excellent condition
Warranty Valid Through: MAY 2028
Shipping Method: FedEx

Posted at

Mar 7, 2026, 2:08 PM

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Omega Seamaster Planet Ocean GMT Titanium 232.90.44.22.03.001 43.5mm under warranty

Omega - 232.90.44.22.03.001 · $5,200

The Omega Seamaster Planet Ocean GMT Titanium is a high-end dive watch with a 43.5mm case, featuring a GMT function and a titanium construction.

Condition: Near mint
Warranty Valid Until: 2027-10

Posted at

Mar 7, 2026, 2:05 PM

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Omega Seamaster Planet Ocean Chronograph 45.5mm 232.30.46.51.01.001

Omega - 232.30.46.51.01.001 · $4,500

A Omega Seamaster Planet Ocean Chronograph with a 45.5mm case size.

Condition: Excellent condition
Case size: 45.5mm

Posted at

Mar 7, 2026, 1:30 PM

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Omega Seamaster Planet Ocean 8500 Orange😍🍊 45.5mm 232.32.46.21.01.001

Omega - 232.32.46.21.01.001 · $4,500

This Omega Seamaster Planet Ocean 8500 is a 45.5mm watch with additional details not specified in the description.

Condition: great condition
Case size: 45.5mm diameter

Posted at

Mar 7, 2026, 1:29 PM

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Omega Seamaster Planet Ocean 8500 45.5mm 232.30.46.21.01.003 under warranty

Omega - 232.30.46.21.01.003 · $4,500

Omega Seamaster Planet Ocean 8500 with a 45.5mm case size, under warranty until November 2027.

Condition: exceptional
Warranty Valid Until: November 2027
Shipping Options: FedEx

Posted at

Mar 7, 2026, 1:25 PM

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

Omega - 215.30.44.21.01.002 · $4,600

The Seamaster Planet Ocean is a rugged yet refined dive watch with 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.

Condition: Good condition
Case diameter: 43.5mm
Crystal material: Sapphire
Bezel material: Black and Orange Ceramic

Posted at

Mar 7, 2026, 11:37 AM

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BNIB Omega Seamaster Planet Ocean

Omega - 217.30.42.21.01.002 · $8,050

A brand new, stickered Omega Seamaster Planet Ocean with a black dial and blue bezel combination on the bracelet.

Condition: Brand new in box (BNIB)
Generation: 4th generation
Warranty Card Date: December 22, 2025

Posted at

Mar 6, 2026, 9:55 PM

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OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 - COMPLETE SET! 🔥$4,150🔥

OMEGA - 232.32.42.21.01.003 · $4,150

The OMEGA Seamaster Planet Ocean 600M Ref. 232.32.42.21.01.003 is a robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering.

Condition: VERY GOOD - few superficial scratches on case
Case size: 42mm
Movement: Co-Axial Caliber 8500
Water resistance: 600m (2000 feet)

Posted at

Mar 6, 2026, 8:23 PM

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