Omega Seamaster Planet Ocean Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Stainless Steel / Sedna Gold / Blue / Alligator

Reference 215.23.46.51.03.001

Omega Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Stainless Steel / Sedna Gold / Blue / Alligator

About this watch

The Omega Seamaster Planet Ocean 600M Co-Axial Chronograph is a masterpiece that marries precision engineering with stunning aesthetics. This remarkable piece features a striking blue ceramic bezel and a lustrous Sedna gold case, making it a head-turner. The 45.5 mm round case is substantial yet comfortable on the wrist, suitable for both casual and formal settings. The watch boasts an exceptional movement, the Omega caliber 9900, which has received the new METAS certification for its precision and reliability. This automatic movement features a column wheel chronograph and a Co-Axial escapement, ensuring accurate timekeeping even when not worn for a couple of days. Its functionality includes hours, minutes, small seconds, date display, and chronograph capabilities, making it a versatile companion for any occasion. The rotating bezel is both a design element and a functional tool for divers, allowing easy tracking of elapsed time underwater. With a water resistance rating of 600 meters and a price tag of $15,300, this watch is an investment that offers excellent value for money. It's not just a timepiece; it's an heirloom, a conversation starter, and a piece of history.

Buy Now on Jomashop

This is an affiliate link

MSRP: $14,500

Market Price: $8,670

Key Features

Omega caliber 9900 movement
Sedna gold case with stainless steel
600 meters water resistance
METAS certified chronograph

Specifications

Brand

Omega

Family

Seamaster Planet Ocean

Model

Seamaster Planet Ocean 600M Co-Axial 45.5 Master Chronometer Chronograph Stainless Steel / Sedna Gold / Blue / Alligator

Reference

215.23.46.51.03.001

Movement

9900

Movement Features

Hours, Minutes, Small Seconds
Date
Chronograph, Column wheel
Chronometer, Co-Axial Escapement

Case

45.5mm

Dial Color

Blue

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 · $4,750

The Omega Seamaster Planet Ocean GMT features a 43.5mm size and is described as being in very good condition with only light scratches on the clasp and bracelet. The watch runs perfectly with no errors, losing only +/–0 seconds per day.

Condition: very good with minor wear
Size: 43.5mm diameter

Posted at

Feb 9, 2026, 4:59 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean Good Planet Foundation Ref: 232.32.44.22.03.001 | Full Set

Omega - 232.32.44.22.03.001 · $4,500

The Omega Seamaster Planet Ocean 600M 'Good Planet' is a stainless steel watch with a vibrant blue dial, polished blue ceramic bezel, and distinctive orange GMT accents.

Case Diameter: 43.5 mm
Thickness: 17.25 mm
Lug Width: 21 mm

Posted at

Feb 8, 2026, 11:19 PM

Active

View listing on r/WatchExchange

OMEGA Seamaster Planet Ocean 6000M Ultra Deep "Summer Blue" Ref. 215.30.46.21.03.002 - ULTIMATE SET! 🔥$12,250🔥

OMEGA - 215.30.46.21.03.002 · $12,250

This OMEGA Seamaster Planet Ocean 6000M Ultra Deep represents the pinnacle of deep-sea engineering, with a massive 45.5mm case crafted from high-grade stainless steel and a lacquered dial featuring a gradient finish that transitions from blue to black.

Condition: UNWORN
Case material: O-MEGASTEEL
Diameter: 45.5mm
Water resistance: 6000m

Posted at

Feb 8, 2026, 7:42 PM

Active

View listing on r/WatchExchange

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

A robust and elegant dive watch that embodies OMEGA's commitment to ocean exploration and precision engineering, featuring a Co-Axial Caliber 8500 movement, water-resistant up to 600 meters, and helium escape valve.

Condition: VERY GOOD, with few superficial scratches on case
Case material: stainless steel
Case diameter: 42mm
Movement: Co-Axial Caliber 8500

Posted at

Feb 8, 2026, 7:40 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 215.30.46.51.01.001 - Full Set

Omega - 215.30.46.51.01.001 · $6,750

Up for sale is an Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - a mechanical watch.

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

Posted at

Feb 8, 2026, 3:05 PM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean Ultra Deep 215.30.46.21.04.001 $7,950

Omega - 215.30.46.21.04.001 · $7,950

The Omega Seamaster Planet Ocean Ultra Deep is a technically impressive dive watch with a staggering 6,000-meter depth rating and oversized dimensions.

Condition: Minty condition, excellent time keeping
Case diameter: 45 mm
Lug width: 22 mm
Water resistance: 600 bar (6000m) - depth rating

Posted at

Feb 8, 2026, 11:07 AM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600M – 232.92.42.21.03.001 – 42mm Titanium – $4,895

Omega - 232.92.42.21.03.001 · $4,895

The Omega Seamaster Planet Ocean 600M is a 42mm titanium watch with 600m water resistance.

Posted at

Feb 8, 2026, 9:09 AM

Active

View listing on r/WatchExchange

Omega Seamaster Planet Ocean 600m Summer Blue Edition - $5,499 Cheapest anywhere!

Omega - 215.30.40.20.03.002 · $5,499

The Omega Seamaster Planet Ocean 600m Summer Blue Edition features a Summer Blue gradient dial with a matching ceramic bezel and commemorative engraving of Poseidon on the caseback.

Condition: Used/Great condition
Size: 39.5mm diameter
Dial color: Summer Blue gradient
Case material: ceramic bezel

Posted at

Feb 7, 2026, 10:22 PM

Active

View listing on r/WatchExchange