Omega Seamaster Planet Ocean 600m Watches

How to Choose Your Seamaster Planet Ocean 600M

The Seamaster Planet Ocean 600M is an automatic dive watch with water resistance to 600 m, available in 39.5 mm and 43.5 mm sizes. The main criteria to consider when choosing a model are case size, intended use, bracelet and movement.

Wrist size. The 39.5 mm model suits wrists measuring 15 to 17 cm in circumference. The 43.5 mm version is generally well proportioned for wrists measuring around 18 cm or more. If your wrist falls between these sizes, try both models: lug-to-lug distance and case thickness affect how the watch wears just as much as its diameter.

Intended use. With water resistance to 600 m, the Planet Ocean is suitable for recreational and deeper diving, as well as swimming and water sports. Its ceramic unidirectional rotating bezel allows you to monitor immersion time. The helium escape valve is designed for saturation diving. If you plan to wear it every day in the city, check that its thickness fits comfortably under your shirt cuff.

The dial. The black dial offers excellent legibility, with luminous hands and hour markers. Other colours are available depending on the reference.

The bracelet or strap. Stainless steel is suitable for all occasions. The rubber strap, meanwhile, is comfortable in the water and dries quickly. A textile strap offers a more casual look. Available options depend on the reference.

The movement. The OMEGA 8800 (39.5 mm) and 8900 (43.5 mm) automatic calibres are certified as Co-Axial Master Chronometers by METAS and resistant to magnetic fields of up to 15,000 gauss.

Which Watch Is Best for Your Lifestyle?

If you dive or enjoy water sports → Planet Ocean 600M, water-resistant to 600 m.

If your wrist measures less than 17 cm in circumference → Planet Ocean, 39.5 mm.

If your wrist measures 18 cm or more in circumference → Planet Ocean, 43.5 mm.

If water resistance to 300 m is sufficient for your needs → Seamaster Diver 300M, 42 mm.

FAQ

What is the water resistance of the Seamaster Planet Ocean 600M?

It is water-resistant to 600 m, or approximately 2,000 feet. It features a screw-down crown and a helium escape valve. This level of water resistance makes it suitable for bathing, swimming and diving. Periodic inspections by a watchmaker help ensure that the seals remain in good condition.

What size Planet Ocean should I choose?

The Planet Ocean is available in 39.5 mm and 43.5 mm sizes. The 39.5 mm model is well proportioned on a wrist measuring 15 to 17 cm in circumference, while the 43.5 mm version generally suits wrists measuring around 18 cm or more. For wrists measuring between 17 and 18 cm, trying on both sizes will help you choose based on lug-to-lug distance and case thickness.

What is the difference between the Planet Ocean 600M and the Diver 300M?

The Planet Ocean 600M is water-resistant to 600 m and is available in 39.5 mm and 43.5 mm sizes. The Seamaster Diver 300M measures 42 mm and is water-resistant to 300 m. For swimming and recreational diving, 300 m of water resistance is sufficient; your choice will also depend on your preferred case size.

Is the Seamaster Planet Ocean 600M automatic or quartz?

It is an automatic watch. The OMEGA 8800 and 8900 calibres wind themselves through the movement of your wrist. If the watch is left unworn for several days, it may stop. Simply wind it using the crown to get it running again.

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