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.

Buy Now on Jomashop

This is an affiliate link

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 2201.51 42mm Box and Card - $2,850

Omega - Planet Ocean 2201.51 · $2,850

Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement. It has a steel case on original Omega steel bracelet and comes in double box, cards, manual, and watch on original bracelet.

Condition: Very good condition for its age with minimal marks/hairlines
Case size: 42mm diameter
Bracelet length: fits up to 7-7.25 inch wrists
Movement type: automatic

Posted at

May 3, 2026, 9:00 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 2201.50 42mm - $2,650 - US BASED!

Omega - 2201.50 · $2,650

Up for sale is my Omega Seamaster Planet Ocean 2201.50 in great condition for its age, measuring at 42mm with an automatic Omega Calibre 2500 movement.

Condition: Very good condition, minimal marks/hairlines on case and bracelet
Movement: Omega Calibre 2500, automatic
Bracelet length: not specified

Posted at

May 3, 2026, 8:52 PM

Active

View listing on r/WatchExchange

Serviced Omega Seamaster Planet Ocean 2201.50 (Gen 1) 42mm

Omega - 2201.50 · $3,850

First generation Omega Seamaster Planet Ocean 42mm in great condition, running well, with a few minor marks on the clasp and lug.

Condition: Extremely good condition, minimal marks and swirls
Movement: 2500C
Bracelet size: 7.25 inch
Additional strap and buckle: Omega OEM rubber strap and buckle

Posted at

May 3, 2026, 7:39 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600M (215.30.44.21.01.001)

Omega - 215.30.44.21.01.001 · $4,475

This Omega Seamaster Planet Ocean 600M is a discontinued reference featuring a black dial on a steel bracelet, in excellent condition with a few light marks.

Condition: Excellent condition, with a few light marks on the case and bracelet
Case size: 43.5mm diameter
Case material: Stainless Steel
Bracelet material: Stainless Steel

Posted at

May 3, 2026, 8:29 AM

Active

View listing on r/WatchExchange