Omega Seamaster Planet Ocean 600M Sedna Gold 215.63.44.21.03.001

It was with OMEGA’s maritime legacy in mind that the brand launched its Planet Ocean line in 2005. Today, the stylish OMEGA Seamaster Planet Ocean 600M Master Chronometer pays homage to OMEGA’s dive watch heritage.

This model, with its scratch-resistant sapphire crystal, features a blue ceramic dial with Arabic numerals and a date window at the 3 o’clock position. The blue ceramic unidirectional bezel with OMEGA Ceragold™ diving scale is mounted on a 43.5 mm 18K Sedna™ gold case.

Other features include an alveol screw-in caseback and a blue leather strap with rubber lining and an 18K Sedna™ gold clasp.

The OMEGA Seamaster Planet Ocean 600M Master Chronometer is water resistant to 600 metres / 2000 feet / 60 bar, and has a helium-escape valve. The OMEGA Master Chronometer calibre 8901 at the heart of this timepiece can be seen through the transparent caseback. To achieve Master Chronometer status, it has passed the 8 rigorous tests set by METAS (The Swiss Federal Institute of Metrology).

Reference: 215.63.44.21.03.001

Dated: 2017

Bracelet: Original 18K Sedna Gold Deployant - watch is on aftermarket Leather Strap

Case: 43.5mm x 16.04mm thickness x 49.30mm lug to lug - 18k Sedna Gold

Lug Width: 21mm

Movement: Omega 8901 - Automatic

Functions: Hour, Minute, Second, date

Box and Papers: Inner/outer boxes, and warranty card

Crystal: Sapphire

Bracelet size: 7.5”

Case has minimal wear with only micros on polished lugs that be seen with a loupe. Strap has little to no wear. Dial, hands, and crystal have no wear. Watch runs within spec.

Founded in 1848 by Louis Brandt in Switzerland, Omega has grown into one of the most respected and innovative names in watchmaking. The brand’s early focus on precision earned it accolades at international observatories and competitions, setting the stage for decades of horological achievement. Omega became the official timekeeper for the Olympic Games in 1932, and in 1969, the Speedmaster Professional—nicknamed the "Moonwatch"—made history as the first watch worn on the lunar surface during NASA’s Apollo 11 mission. Omega’s innovations continued with the introduction of the Co-Axial escapement in the late 1990s, a groundbreaking movement that dramatically reduced friction and improved long-term accuracy.

Omega’s lineup showcases a wide range of iconic models that reflect the brand’s legacy and versatility. The Seamaster, introduced in 1948, is a favorite among divers and famously worn by James Bond since 1995’s GoldenEye, blending technical capability with cinematic cool. The Speedmaster remains one of the most storied chronographs in existence, while the Constellation is known for its refined design and chronometric precision. The De Ville collection offers a more elegant, dress-focused aesthetic, often featuring high-end complications and meticulous finishing. Omega continues to lead with innovations like Master Chronometer certification, METAS testing, and antimagnetic technology—ensuring that its watches are not just beautiful, but built for the demands of modern life.