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Omega Speedmaster Grey Side of the Moon

The Omega Speedmaster Grey Side of the Moon is a distinctive expression of the Speedmaster collection, combining the model’s iconic chronograph heritage with a modern ceramic case and space-inspired aesthetic.

The official OMEGA specification for reference 311.93.44.51.99.002 identifies the watch as the Speedmaster Dark Side of the Moon Grey Side of the Moon. It features a 44.25mm ceramic case, automatic Calibre 9300 movement, leather strap, 5 bar water resistance, and approximately 60 hours of power reserve.

44.25mm Ceramic Case

One of the defining characteristics of the Omega Grey Side of the Moon is its 44.25mm ceramic case. The use of ceramic gives the watch a contemporary technical appearance while reinforcing the collection’s connection with advanced materials and space-inspired design.

The large case provides substantial wrist presence while maintaining the recognizable Speedmaster silhouette.

Automatic Calibre 9300 Movement

At the heart of the watch is OMEGA’s automatic Calibre 9300. According to the official OMEGA manual, the movement provides approximately 60 hours of power reserve and supports hours, minutes, small seconds, date, time-zone, chronograph, and tachymeter functions.

The mechanical chronograph movement adds depth to the watch’s technical character while maintaining the functionality expected from the Speedmaster family.

Chronograph Function

The Grey Side of the Moon Chronograph is designed around the Speedmaster’s signature timing functionality. Its chronograph allows the wearer to measure elapsed time, while the tachymeter scale reinforces the traditional racing and timing heritage of the Speedmaster.

This combination of chronograph functionality and tachymeter styling gives the watch a strong performance-oriented identity.

Space-Inspired Grey Aesthetic

The grey color palette is central to the personality of the Grey Side of the Moon. It gives the watch a more refined and understated appearance compared with darker ceramic Speedmaster models while preserving the technical character of the Dark Side of the Moon collection.

OMEGA continues to connect the Dark Side and Grey Side of the Moon collections with the brand’s long association with lunar exploration and the Speedmaster’s space heritage.

Date and Time-Zone Functions

Beyond its chronograph, the official specification lists a date display and time-zone function, making the watch practical for everyday wear and travel.

These additional functions complement the chronograph without taking away from the watch’s distinctive Speedmaster appearance.

Leather Strap

Reference 311.93.44.51.99.002 is specified with a leather bracelet/strap, complementing the ceramic case and giving the watch a sophisticated luxury-sports character.

The combination of ceramic and leather creates a balanced appearance that can work with casual, business-casual, and luxury sportswear.

5 Bar Water Resistance

The official OMEGA manual specifies 5 bar, equivalent to 50 metres / 165 feet, of water resistance for reference 311.93.44.51.99.002.

As with any mechanical luxury watch, water resistance should be maintained through regular inspection and appropriate care.

Key Features

• Omega Speedmaster Grey Side of the Moon
• Speedmaster Dark Side of the Moon collection
• Grey Side of the Moon chronograph design
• 44.25mm ceramic case
• Automatic OMEGA Calibre 9300
• Approximately 60-hour power reserve
• Chronograph function
• Tachymeter scale
• Date display
• Time-zone function
• Small seconds
• Leather strap
• 5 bar / 50m water resistance
• Space-inspired luxury sports design
• Distinctive grey ceramic aesthetic