Omega Seamaster Watches
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How to Choose Your OMEGA Seamaster Watch
The OMEGA Seamaster collection offers a wide range of models, each with its own distinctive features. Your first step is to choose the line that best suits your intended use, then select the size and options that fit your wrist. Here are six key factors to help you make the right choice.
The different lines. The Seamaster Aqua Terra is the collection’s everyday dress watch, with water resistance to 150 m. The Diver 300M is a dive watch measuring 42 mm, with water resistance to 300 m. The Planet Ocean 600M, water-resistant to 600 m, is designed for deeper diving and is available in 39.5 mm and 43.5 mm sizes.
Wrist size. For a wrist circumference of less than 17 cm, opt for a diameter of 38 to 39.5 mm. For wrists measuring 17 to 19 cm, a 41 to 42 mm case offers a good balance. For larger wrists, a 43.5 mm model remains well proportioned. Case thickness and lug-to-lug distance are just as important as diameter.
Intended use. For the office and weekend wear, a fixed bezel and a slimmer case offer a more understated look. For diving, a unidirectional rotating bezel allows you to monitor immersion time. For swimming or beach outings, water resistance to 150 m is sufficient.
Dial and bracelet. Depending on the reference, dials are available in black, blue, grey or green. A stainless steel bracelet suits all occasions, while a rubber strap is well suited to water activities. Leather or textile straps offer a dressier look.
The movement. Current models across these three lines are equipped with automatic Co-Axial Master Chronometer movements, certified by METAS and resistant to magnetic fields of up to 15,000 gauss.
Trying it on. Weight, legibility and how the case sits on your wrist are best assessed in person. Comparing two or three models in store will help you avoid any unwelcome surprises.
Which Watch Is Best for Your Lifestyle?
If you want an everyday watch with water resistance to 150 m → Aqua Terra, 38 or 41 mm.
If you enjoy recreational diving → Diver 300M, 42 mm, water-resistant to 300 m.
If you dive at greater depths → Planet Ocean 600M, 43.5 mm, water-resistant to 600 m.
If your wrist measures less than 17 cm in circumference → Aqua Terra, 38 mm.
FAQ
What is the difference between the Seamaster Aqua Terra and the Diver 300M?
The Aqua Terra is an everyday watch available in 38 mm or 41 mm, with water resistance to 150 m and a fixed bezel. The Diver 300M measures 42 mm, is water-resistant to 300 m and features a ceramic unidirectional rotating bezel. The right choice depends on how you intend to use it: everyday wear or diving.
Can you swim with an OMEGA Seamaster?
Yes, all three main lines are designed for use in water: 150 m water resistance for the Aqua Terra, 300 m for the Diver 300M and 600 m for the Planet Ocean. Make sure the crown is screwed down before exposing the watch to water, and have its water resistance checked regularly by a watchmaker.
What size Seamaster should I choose for a slim wrist?
For a wrist measuring less than 17 cm in circumference, the 38 mm Aqua Terra or the 39.5 mm Planet Ocean will generally remain well proportioned. Models measuring 42 mm and above are generally better suited to wrists of 17 cm or more. Try the watch on to assess the lug-to-lug distance and overall fit.
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