Omega · Authentication
Seamaster Planet Ocean: real vs fake
The Seamaster Planet Ocean is a large professional diver with a ceramic bezel and orange accents, and fakes most often fail on bezel execution, the helium valve and the lume. On a genuine watch the ceramic-insert engraving is crisp and the lacquered orange is even and saturated. Verify the bezel, valve and dial with LegitCheck AI.
What to check on the Seamaster Planet Ocean
Model-specific zones — on top of the brand-level signs.
Ceramic bezel and its markings
The markings and numerals on the ceramic insert are engraved or applied evenly with crisp edges, and the orange/colored accents are saturated without bleeding at the outline. Replicas use a crooked font, faded color and often a painted aluminum insert instead of ceramic.
Helium escape valve at 10 o’clock
Like the Seamaster 300M, the Planet Ocean has a helium escape valve on the case side at 10 o’clock. It is cleanly integrated with even threading. A tilted or decorative valve is a copy tell.
Lume coating
Lume on the markers, hands and bezel pip is applied densely in an even layer and glows brightly for a long time. Patchy fill, mismatched tone or a weak glow is typical of fakes.
Dial & printing
The "Seamaster", "PLANET OCEAN", "Co-Axial" and depth text is printed sharply, the markers are applied and straight, and the Omega logo is undistorted. Painted or misaligned text gives a replica away.
Seahorse engraving & movement
The caseback carries Omega’s Seahorse with crisp engraving; on sapphire-window versions a neatly finished movement is visible. A crude movement under sapphire or a flat seahorse is a warning sign.
Where to inspect
The key zones to photograph and check on this type of item — a schematic, not a product photo.
- 1Dial and printing
- 2Bezel and markings
- 3Crown
- 4Bracelet and links
- 5Serial and engraving
The difference is in the details — drag the slider
Typical differences in workmanship: stitching consistency, edge finishing, detail quality. Left — factory quality, right — common replica flaws.
Replica 
Authentic Photo angles for the check
- 1 Dial
- 2 Caseback
- 3 Crown
- 4 Bracelet
- 5 Serial number
Check your Seamaster Planet Ocean right now
Snap photos of your item and get an AI verdict with a confidence score in about a minute.
FAQ
What is a genuine Planet Ocean bezel made of?
Modern Planet Oceans use a ceramic insert with crisp, durable markings and saturated colored accents. Painted aluminum with faded color and a crooked font is a replica tell.
Does the Planet Ocean have a helium escape valve?
Yes, on the case side at 10 o’clock, like the professional Seamaster divers. A missing or dummy valve is a reason to doubt authenticity.
How do I check the lume and bezel from photos?
Shoot the dial and bezel in both normal and low light to judge the evenness and brightness of the glow, then upload to LegitCheck AI to compare against genuine traits.
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