Omega Speedmaster Co-Axial Chronograph, often referred to as the 44.25 mm Co-Axial Speedmaster. It is not the traditional Moonwatch, although it shares much of its appearance.

Specifications

* Reference: 311.30.44.50.01.002
* Production: Approximately 2008–2013 (now discontinued).
* Case: 44.25 mm stainless steel
* Crystal: Sapphire front
* Caseback: Sapphire exhibition back
* Water resistance: 100 m
* Movement: Omega Calibre 3313
* Automatic
* Column-wheel chronograph
* Co-Axial escapement
* COSC chronometer certified
* Approximately 52-hour power reserve
* Functions: Hours, minutes, small seconds, chronograph, date at 6 o’clock
* Bracelet: Stainless steel with folding clasp
* Lug width: 21 mm

How it differs from the Moonwatch

Unlike the iconic manual-wind Moonwatch:

* It is automatic.
* It has a date window.
* It is 44.25 mm instead of 42 mm.
* It has a display caseback so you can admire the movement.

Original retail price

When new, it retailed for roughly €5,000–€6,500, depending on the year and market.