Seamaster Planet Ocean family · 10 references Omega

Seamaster Planet Ocean 4th Gen

Name: Omega Seamaster Planet Ocean 4th Gen
Brand: Omega
Availability: InStock

42mm Consistent Pricing

Low $6,950

Median $7,300

High $7,750

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The fourth-generation Omega Seamaster Planet Ocean brings the collection’s deep-diving brief to a 42mm steel case—a useful middle ground if the previous generation’s 43.5mm model felt too broad. Since its debut in 2005, the Planet Ocean has offered something distinct within the Seamaster family: a dive watch built around a substantial 600m water-resistance rating, rather than merely borrowing the look.

For this generation, case diameter is a reason to pay attention, not a promise of a smaller-feeling watch in every dimension; how it sits across your wrist still matters. Inside, the automatic 8900 offers a particularly useful travel feature: its hour hand adjusts independently, so changing local time doesn’t interrupt the running seconds. When trying one, work through that adjustment as well as the bezel action—two tactile details you’ll live with well beyond the first impression.

MovementAutomatic

Caliber8900

Case MaterialStainless Steel

Case Size42mm

Water Resistance600m

What owners love

The flatter case and short lugs make this generation noticeably easier to wear than the older Planet Oceans. Owners repeatedly praise how well the weight sits on the wrist rather than making the watch feel top-heavy.
The tapered bracelet is genuinely comfortable, and the clasp’s micro-adjustment makes small fit changes easy during the day. That comfort gets praise even from owners who have complaints about the bracelet’s finish.

Common Criticisms

The polished centre links pick up scratches very readily. Several owners love how the bracelet looks initially but find those shiny surfaces show everyday wear sooner than they would like.
Changing between the bracelet and a strap can be surprisingly frustrating: owners report very tight end-link clearances and spring bars that stick compressed. More than one has needed a dealer’s help to reinstall the bracelet correctly.

Seamaster Planet Ocean 4th Gen

What owners love

Common Criticisms

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