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.

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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

[US] Omega Seamaster Planet Ocean 600m - Black Dial - 45.5mm - 232.30.46.21.01.001 - Full Set

Omega - 232.30.46.21.01.001 · $4,500

This Omega Seamaster Planet Ocean is a high-end diver's watch featuring a black dial and a 45.5mm case.

Condition: Fantastic with minor hairlines on case, clasp, or bracelet
Case Diameter: 45.5mm
Depth Rating: 600m

Posted at

Apr 16, 2026, 7:50 AM

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Omega Seamaster Planet Ocean 2900.50

Omega - 2900.50 · $3,100

A used Omega Seamaster Planet Ocean in good working order, sold with a new band and additional accessories.

Condition: good with minor issues
Case condition: few superficial scratches on case sides
Band condition: new
Included accessories: PO metal bracelet, warranty card, hang tag, manual, box

Posted at

Apr 15, 2026, 7:37 PM

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Omega Seamaster Planet Ocean 2201.51 42mm Box and Card S - $2,950

Omega - 2201.51 · $2,950

Up for sale is my great condition Omega Seamaster Planet Ocean 2201.51, measuring at 42mm with an automatic Omega Calibre 2500 movement.

Condition: Very good condition for its age
Case size: 42mm diameter
Water resistance: 200m depth rating
Bracelet length: up to 7-7.25 inch wrists

Posted at

Apr 15, 2026, 4:32 AM

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Omega Seamaster Planet Ocean 600M 217.32.42.21.01.001 (Feb 2026) – $6800

Omega - 217.32.42.21.01.001 · $6,800

This Omega Seamaster Planet Ocean 600M is a stunning, bold, and sporty watch that feels refined enough to wear anywhere.

Condition: Brand new
Retail Price: $8,600 MSRP in the US
Shipping Included: true
Payment Methods: Zelle or PayPal

Posted at

Apr 14, 2026, 4:31 PM

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Omega Seamaster Planet Ocean 600M 232.92.42.21.03.001 42mm Titanium Blue 2020

Omega - 232.92.42.21.03.001 · $4,775

A blue dial Omega Seamaster Planet Ocean 600M with a 42mm titanium case, featuring a Calibre 8500 automatic movement and 600m water resistance.

Condition: Excellent pre-owned condition with light wear
Case size: 42mm diameter
Material: titanium
Movement: Calibre 8500, Co-Axial, automatic

Posted at

Apr 12, 2026, 1:48 PM

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Omega Seamaster Planet Ocean 232.30.42.21.01.003 – 42mm

Omega - 232.30.42.21.01.003

This is a listing for an Omega Seamaster Planet Ocean watch.

Model name: Planet Ocean
Case size: 42mm

Posted at

Apr 12, 2026, 12:51 PM

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Omega Seamaster Planet Ocean 215.30.44.21.01.002 – 43.5mm – Full Set

Omega - 215.30.44.21.01.002 · $8,500

This Omega Seamaster Planet Ocean is a 43.5mm watch with additional details provided.

Case size: 43.5mm

Posted at

Apr 12, 2026, 12:15 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 · $6,525

A Omega Seamaster Planet Ocean Chrono 600m watch featuring a black dial and measuring 45.5mm in diameter.

Condition: Fantastic with minor hairlines
Case Size: 45.5mm diameter
Depth Rating: 600m

Posted at

Apr 12, 2026, 9:47 AM

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Omega Seamaster Planet Ocean 8500 Orange 45.5mm 232.32.46.21.01.003 on Omega mesh bracelet

Omega - 232.32.46.21.01.003 · $3,600

The Omega Seamaster Planet Ocean Orange 8500 features a 45.5mm case, gray bezel that was swapped for an OEM orange one, and comes with a mesh/milanese bracelet.

Condition: Near mint
Bracelet type: Omega mesh/milanese
Case size: 45.5mm
Bezel color: Orange

Posted at

Apr 11, 2026, 5:11 PM

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