Omega has always been driven by a pioneering spirit; in fact, no watch company in the world holds more records for accuracy. Their watches have been the timepiece of choice for some of history’s greatest explorers—from deep-sea divers to astronauts.

Here's a Seamaster that focuses upon the heart of the matter, upon what matters most in a timepiece: legibility and reliability.

As a self-winding automatic watch the Master Co-Axial Omega 8800 caliber is the star of the show. This thrilling certified Master Chronometer antimagnetic movement can be viewed via the exhibition caseback, and it offers 55 hours of power.

To be sure, the unidirectionally rotating bezel with dive scale and luminous dot comes in handy when on dive missions, as does the helium escape valve, 600 m / 60 atm water resistance, and screw-down winding crown.

A most handsome blue dial showcases luminous hour, minute, and seconds hands, as well as a convenient date window at 3, an easy-to-read minute track in white, and dashing orange accenting.

The stainless steel case measures a formidable 39.5 mm in diameter, 14.2 mm in height, and rests upon a stainless steel bracelet with a folding clasp. 

From its dependable construction to its no-nonsense styling, this Omega Seamaster will serve you well, no matter the occasion.

Standout feature(s): Certified Master Chronometer antimagnetic movement; helium escape valve, 600 m / 60 atm water resistance, and screw-down winding crown; handsome blue dial.

Details at a glance:

• Model Reference: 215.30.40.20.03.001
• Case Material: Stainless steel
• Case Dimensions: 39.5 mm
• Case Height: 14.2 mm
• Movement: Self-winding automatic Master Co-Axial; 55-hour power reserve
• Caliber: Omega 8800
• Complication(s) / Feature(s): Standard time; central seconds; date
• Dial: Blue
• Crystal: Scratch-resistant sapphire
• Winding Crown: Screw-down
• Water-resistance: 600 m / 60 atm (tested to 50 m / 5 atm)
• Band: Stainless steel bracelet
• Clasp: Folding clasp with safety release buttons
• Country of Origin: Switzerland
  
• Retail Value: $8,000 (Last known retail)
• Condition: Pre-owned in excellent condition; all functions are in proper operational order and accuracy is within chronometer specs.
• Comments: Includes original box, instructions manual, tag and papers