Nowadays, every Omega aficionado has the opportunity to choose between three variations of the Seamaster: Seamaster Professional, Seamaster Planet Ocean, and Seamaster Aqua Terra. Of all the contemporary Seamaster models, the Aqua Terra is the one that most closely resembles the original with its more elegant style, but as might be expected, there has been a significant evolution – both in the brand's design and in the tastes of its admirers.
All models have a screw-down crown and also feature a helium escape valve, positioned at 10 o'clock. The automatic versions use the Omega-modified ETA 2892. At the series' introduction, the Omega 1109 caliber was used, but in 1996 it was replaced by the Omega 1120 to improve durability by adding a rhodium plating. In 2006, the Omega Seamaster received the Co-Axial caliber Omega 2500 (also based on the ETA 2892), which is used to this day. Every Seamaster Professional features a unidirectional bezel – initially with an aluminum insert, and since 2012, Omega began offering the model with a ceramic insert.
The model presented today is from the newest line, first launched at Baselworld in 2018, and aims to become the new cult successor to the brand's diving heritage. This particular model is more special and is part of a line of 11 models that Omega launched in 2023 to mark the 75th anniversary of the first Seamaster's introduction.
It is distinguished from the other Diver 300M models by several design elements – the most visible being the special "Summer Blue" color, which graduates from the center to the edges of the dial. The second distinctive element is the color of the luminescence (again, blue), as well as the color of the numerals on the bezel, which are also rendered in blue. The third accent is the solid case back, which depicts Poseidon driving a team of two seahorses – the signature emblem of the Seamaster.
The movement of this impressive timepiece deserves separate attention – the new coaxial caliber Omega 8800, operating at a frequency of 25,200 vibrations (3.5 Hz), unusual for other movements, with a power reserve of over 55 hours, 38 jewels, and 202 components. With two barrels, the brand's Nivachoc anti-shock system, and a number of other technological solutions, this movement allows Omega to provide a 5-year warranty for some of its watches, including this model.
The differences compared to the previous coaxial movement, the Omega 8500, are several, but the most significant is that the new one is now a Master Chronometer – having passed the METAS certification with much stricter criteria. This is an achievement that undoubtedly deserves the respect of us all.