The Omega Seamaster Diver 300M Chronograph (Reference 2297.80.00) is a classic, discontinued luxury sports watch from the late 1990s and early 2000s. It stands out because it mixes lightweight gray titanium with bright 18k yellow gold accents, creating a striking "two-tone" look.

• The Case and Size: It has a 41.5mm case made from strong, scratch-resistant titanium. It features an 18k yellow gold unidirectional rotating bezel (a bezel that only turns one way to help divers track their time safely underwater).

• The Dial: It features Omega's famous blue "ocean wave" pattern dial. It has luminous skeleton hands and round hour markers that glow in the dark, along with a date window at the 3 o'clock position. 

• The Chronograph: As a stopwatch watch (chronograph), it has three smaller sub-dials to measure passed hours, minutes, and seconds.

• The Movement: Inside is the Omega Caliber 1164, which is an automatic (self-winding) mechanical movement. It charges itself naturally from the movement of your wrist and keeps a 44-hour power reserve.

• Diving Ability: Built for serious water activities, it is water-resistant up to 300 meters (1,000 feet). It also includes a manual helium escape valve on the left side of the case at 10 o'clock. 

• The Bracelet: The matching bracelet is also made of titanium with 18k yellow gold links running down the middle, complete with a diving extension clasp.