The Titanium Field Guide

Omega Speedmaster X-33 Marstimer (Titanium)

318.90.45.79.01.003

The Omega Speedmaster X-33 Marstimer (Titanium) is a current-production pilot watch with a Grade 2 titanium case. At 112 g it sits among the heavier pilot watches in the guide, and is priced well above the $2,500 median for the category. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

Titanium pilot watchesLightest, rankedOn a titanium braceletPerpetual calendarGMTChronograph
Price
$6,400
Titanium
Grade 2
Weight
112 g (head only)
Water resistance
30 m
Nickel-free
Yes
Reference
318.90.45.79.01.003
Type
Pilot
Case diameter
45.0 mm
Thickness
14.7 mm
Lug-to-lug
48 mm
Origin
Switzerland
Movement
Quartz (thermocompensated, ana-digi)
Caliber
Omega Caliber 5622
Complications
Chronograph, GMT, Perpetual calendar, Date
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Surface treatment
None
Caseback
Titanium
Bracelet / strap
Titanium bracelet and NATO
Titanium bracelet
Standard
Crystal
Sapphire, AR coated
Display back
No
Dial
Black ana-digi, Mars-red bezel
Dial colours
Black Red
Lume
Super-LumiNova
Availability
Offered
Status
Current
Not published
Power reserve
High confidence Verified Jul 2026 Source: Monochrome Maker / listing ↗
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Frequently asked questions

Is the Omega Speedmaster X-33 Marstimer (Titanium) nickel-free?

Yes. Nothing nickel-bearing touches the skin: a Grade 2 titanium case with a titanium caseback, plus a non-steel crown and bracelet and clasp. The Titanium Field Guide marks it nickel-free for whole-watch skin contact. If your allergy is severe, confirm the contact points with the maker.

What grade of titanium is the Omega Speedmaster X-33 Marstimer (Titanium)?

The Omega Speedmaster X-33 Marstimer (Titanium) has a Grade 2 titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Omega Speedmaster X-33 Marstimer (Titanium)?

It is 45.0 mm in diameter, 14.7 mm thick, 48 mm lug to lug, and water resistant to 30 m.

How much does the Omega Speedmaster X-33 Marstimer (Titanium) weigh?

About 112 g (head).

How much does the Omega Speedmaster X-33 Marstimer (Titanium) cost, and is it available?

It is current-production and lists from $6,400.

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