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Omega Seamaster Planet Ocean 600M 43.5mm Omega Watch Review

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The Omega Seamaster Planet Ocean 600M 43.5mm Omega Watch Review explores the features and specifications of this dive watch, presented by WatchBox Reviews. This watch is encased in 43.5mm of stainless steel and features a blue dial on a stainless steel bracelet. It includes functions such as hours, minutes, seconds, and date, and measures 16.3mm in thickness and 48.8mm from lug-to-lug. The review by Tim Mosso provides a comprehensive evaluation of the timepiece, highlighting its design, functionality, and overall quality. For a detailed analysis and insights, the full review can be accessed through WatchBox’s website.

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Overview of the Omega Seamaster Planet Ocean 600M Watch

The Omega Seamaster Planet Ocean 600M Watch is a highly regarded timepiece that combines exceptional design with outstanding functionality. Designed for divers and water sports enthusiasts, this watch offers impressive water resistance, durable construction, and a host of features that are essential for underwater exploration. In this article, we will delve into the various aspects of this watch, from its design and build to its functionality and features, to provide you with a comprehensive overview of what this timepiece has to offer.

Design and Build

Case Size and Material

The case of the Omega Seamaster Planet Ocean 600M Watch is crafted from high-quality materials, ensuring both durability and a polished appearance. With a case size of 43.5mm, this watch strikes the perfect balance between being bold and yet not overpowering on the wrist. The case is available in a variety of materials, including stainless steel, titanium, and even precious metals such as gold, catering to the preferences and budgets of different individuals.


The bracelet of the Omega Seamaster Planet Ocean 600M Watch is meticulously designed to provide both comfort and style. It features a fine balance of brushed and polished links, lending an elegant touch to the overall aesthetic of the watch. The bracelet is fully integrated with the case, ensuring a seamless transition and enhancing the overall robustness of the timepiece.

Lug-to-lug Size

The lug-to-lug size of a watch is an important consideration, as it determines how well the watch will sit on your wrist. The Omega Seamaster Planet Ocean 600M Watch has a lug-to-lug size of 51mm, providing a comfortable fit for a wide range of wrist sizes. This ensures that the watch sits securely on your wrist and does not feel cumbersome or awkward.

Comfortability on the Wrist

When it comes to wearing a watch for extended periods, comfort is key. The Omega Seamaster Planet Ocean 600M Watch excels in this aspect, with its ergonomic design and carefully thought-out proportions. The bracelet and case are expertly crafted to sit comfortably on your wrist, allowing for all-day wear without causing any discomfort or irritation.

Hardware and Clasp Details

The hardware and clasp on the Omega Seamaster Planet Ocean 600M Watch are designed with precision and functionality in mind. The watch features a sturdy, yet easy-to-use, folding clasp that ensures a secure fit. The clasp also allows for micro-adjustments, allowing you to find the perfect fit for your wrist. Additionally, the hardware on this watch is made to withstand the rigors of underwater exploration, ensuring that it remains reliable and durable even in demanding conditions.

Adjustability and Use over a Dive Suit

For divers, the ability to wear a watch over a dive suit is of utmost importance. The Omega Seamaster Planet Ocean 600M Watch is designed to accommodate this need, with its adjustable bracelet. The bracelet can be easily extended or contracted to fit comfortably over a dive suit, ensuring that the watch remains securely in place throughout your underwater adventure.

Case Flank and Satin

The case flank of the Omega Seamaster Planet Ocean 600M Watch is beautifully crafted, with meticulous attention to detail. The satin finish on the case flank lends a refined and sophisticated look to the watch, while also providing a certain level of scratch resistance. This ensures that the watch maintains its pristine appearance even after years of regular wear.

Helium Escape Valve

A significant feature of the Omega Seamaster Planet Ocean 600M Watch is its helium escape valve. This valve allows the release of helium gas that may accumulate inside the watch during deep dives. By releasing this gas, the watch maintains its water resistance and prevents any damage that could occur when ascending back to the surface. This feature is essential for professional divers who undertake deep dives on a regular basis.


The bezel of the Omega Seamaster Planet Ocean 600M Watch is not only aesthetically pleasing but also highly functional. It features a unidirectional rotating bezel, which allows divers to accurately measure elapsed time underwater. The bezel is easy to grip and operate, ensuring that divers can make adjustments with ease, even while wearing gloves. The bezel also incorporates luminous markings, allowing for enhanced legibility in low-light conditions.

Dial Design and Materials

The dial design of the Omega Seamaster Planet Ocean 600M Watch is both stylish and practical. It features bold hour markers and hands, coated with luminescent material for optimal legibility in all lighting conditions. The dial is available in a range of colors, catering to different preferences and tastes. The materials used for the dial, such as ceramic or enamel, are carefully chosen for their durability and resistance to fading.

Omega Seamaster Planet Ocean 600M 43.5mm Omega Watch Review

Functionality and Features

Water Resistance

As the name suggests, the Omega Seamaster Planet Ocean 600M Watch offers an impressive water resistance of up to 600 meters (2000 feet). This makes it an excellent choice for avid divers or individuals who engage in water sports. The watch is equipped with a screw-down crown and caseback, ensuring that water does not penetrate the inner workings of the watch. Additionally, the use of high-quality seals and gaskets further enhances its water resistance capabilities.

Bezel Functionality

The unidirectional rotating bezel of the Omega Seamaster Planet Ocean 600M Watch serves a crucial function in underwater activities. It allows divers to track their dive time accurately and ensures that they adhere to their decompression schedules. The bezel is easy to grip and rotate, providing a tactile and audible click for each minute increment. This functionality is crucial for divers who rely on precise timing during their underwater ventures.

Date Display

The Omega Seamaster Planet Ocean 600M Watch features a date display window positioned at the 3 o’clock position on the dial. The date is indicated with clear and legible numerals, ensuring ease of readability. The date change mechanism is designed to transition smoothly and accurately at midnight, ensuring that you always have the correct date at your fingertips.

Hacking Seconds or Stop Seconds Mode

The hacking seconds or stop seconds mode is a feature that allows for precise time setting. With this mode activated, the second hand of the watch comes to a halt when the crown is pulled out to adjust the time. This feature is particularly useful when synchronizing the watch with other timekeeping devices or when seeking absolute accuracy in timekeeping.

Setting Mode

The setting mode of the Omega Seamaster Planet Ocean 600M Watch enables quick and easy adjustments to various watch functions. By using the crown, you can easily navigate through the different settings, such as time, date, and stop seconds mode. The setting mode is intuitive and user-friendly, making it simple to configure the watch to your specific preferences.

Caliber 8900 Movement

The Omega Seamaster Planet Ocean 600M Watch is powered by the Caliber 8900 movement, which is renowned for its precision and reliability. This self-winding movement boasts exceptional timekeeping accuracy, with a frequency of 25,200 vibrations per hour. It also features a co-axial escapement, which reduces friction and ensures optimal performance over time. The Caliber 8900 movement is equipped with both a quick-set date function and 60 hours of power reserve, providing convenience and longevity in one package.

Master Chronometer Certification

The Omega Seamaster Planet Ocean 600M Watch holds the prestigious Master Chronometer certification, a mark of exceptional precision, accuracy, and reliability. To achieve this certification, the watch undergoes a series of rigorous tests conducted by the Swiss Federal Institute of Metrology. These tests assess the watch’s performance in various conditions, including exposure to magnetic fields, water resistance, and accuracy under different positions. The Master Chronometer certification ensures that the watch meets the highest standards of quality and performance.

Shock Resistance

The Omega Seamaster Planet Ocean 600M Watch is designed to withstand the shocks and vibrations that may occur during various physical activities. The movement is protected by anti-shock systems, such as shock absorbers and balance bridges, which minimize the impact of external forces on the delicate components of the watch. This shock resistance ensures that the watch remains accurate and reliable, even in demanding environments.

Power Reserve

The Caliber 8900 movement of the Omega Seamaster Planet Ocean 600M Watch boasts an impressive power reserve of up to 60 hours. This means that if the watch is fully wound, it can run for up to 60 hours without any additional winding or movement. This power reserve is particularly useful if you rotate between multiple watches or if you don’t wear the watch every day. It ensures that the watch remains operational even after a period of inactivity.


Magnetic fields can have a detrimental effect on the accuracy of a mechanical watch. The Omega Seamaster Planet Ocean 600M Watch is engineered to combat this issue with its anti-magnetic properties. The watch is resistant to magnetic fields of up to 15,000 gauss, protecting the delicate movement from any adverse effects. This anti-magnetic feature ensures that the watch maintains its accuracy and reliability, even in the presence of powerful magnetic fields.


In conclusion, the Omega Seamaster Planet Ocean 600M Watch is a timepiece that excels in both design and functionality. From its robust construction and elegant aesthetics to its impressive water resistance and range of features, this watch is a testament to Omega’s commitment to producing exceptional timepieces. Whether you are a professional diver or simply appreciate a reliable and stylish watch, the Omega Seamaster Planet Ocean 600M is an excellent choice that will withstand the test of time.

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