The Omega Seamaster Planet Ocean Haima 300m is a limited-edition watch from Omega that is part of the Seamaster Planet Ocean collection. The watch was designed to commemorate the first Chinese astronaut, Yang Liwei, who flew in the Shenzhou 5 spacecraft in 2003. The following are some of the specifications of the Omega Seamaster Planet Ocean Haima 300m:

Case: 43.5mm stainless steel with a polished finish

Bezel: Unidirectional rotating bezel with a black ceramic insert and a diving scale

Dial: Blue with white hour markers and hands

Movement: Automatic Omega Calibre 8900

Water resistance: 300 meters (1000 feet)

Strap: Blue rubber strap with a stainless steel folding clasp

Additional features: Chronometer certification, date display at 3 o'clock, helium escape valve, and a power reserve of 60 hours

The Omega Seamaster Planet Ocean Haima 300m is a limited-edition watch with only 1,963 pieces produced. It is designed for those who appreciate the combination of diving watch functionality and Chinese heritage. It also has the Chinese characters of "Haima" which is the Chinese name for the spacecraft