Marathon’s GSAR has always been a watch with a job to do, not a watch trying to look rugged from across the room.
The new 41mm Titanium GSAR moves that formula forward in a meaningful way, bringing Grade 5 titanium to a permanent production Marathon watch for the first time and pairing it with a longer-running movement.
For a military-minded tool watch, that matters because the best upgrades are the ones you feel on the wrist and rely on when conditions aren’t ideal.
At a glance
- Marathon has launched the 41mm Titanium GSAR, its first permanent production watch with a titanium case.
- The watch uses Grade 5 titanium, a 300m water-resistant case, tritium illumination and an upgraded Sellita SW200-2 Top Grade movement.
- It is priced at £2,475, sitting above the steel GSAR while adding material, dial and movement upgrades.
Titanium changes the GSAR’s daily wear
The headline here is the case, which is made from Grade 5 titanium and measures 41mm across by 13.5mm thick.
Marathon has used titanium before on limited editions, but the 41mm Titanium GSAR is its first permanent production model in the material.
The appeal is straightforward for a watch built around field use and search-and-rescue utility.
Marathon states the titanium construction makes the watch 30% lighter than an equivalent steel model, while retaining the strength and practicality expected from a purpose-built case.
That weight reduction is more than a spec-sheet talking point.
On a watch intended to be worn for long stretches, especially with gloves, equipment or changing conditions, a lighter case can make the GSAR feel less intrusive without softening its tool-watch character.
The case is fully brushed, a sensible choice for a military watch where glare and polish would be out of place.
The oversized crown at 3 o’clock has a hobnail grip, giving it a more secure feel for adjustment in adverse conditions.
A dive bezel and dial built around function
The titanium theme continues with the 120-click dive timing bezel.
Its unidirectional action is a familiar safety feature on dive watches, because an accidental knock can only shorten the indicated remaining time rather than extend it.
In practical terms, that means the watch encourages an earlier return rather than a late one if the bezel is moved unintentionally during immersion timing.
Marathon has also adjusted the dial in subtle but useful ways compared with the steel GSAR.
The date wheel between 4 and 5 o’clock now uses white numerals on a black background, helping it sit more quietly within the display while remaining legible.
The typography has been revised too, with bolder, squarer numerals and lettering that suit the watch’s utilitarian brief.
It’s the sort of change that won’t transform the GSAR from a distance, but it does sharpen the watch’s character up close.
Below the central hand stack, the “Automatic” text gets a small material cue, with the “Ti” picked out in red as a nod to the titanium construction.
Low-light legibility comes from tritium gas tubes on the hands and hour markers, giving the watch a constant glow without relying on external light to charge the display.
The movement gets a useful reserve boost
Inside the 41mm Titanium GSAR is the Sellita SW200-2 Top Grade with a 65-hour power reserve.
That is a notable step up from the SW200-1 used in the steel model, which has a 41-hour reserve.
The extra running time is a practical upgrade rather than a decorative one.
It means the watch can be left off the wrist for a couple of days and still be ready without needing to be reset immediately.
The watch is supplied on a black rubber strap with a titanium pin buckle, keeping the overall package consistent with the lightweight case.
Marathon has priced the 41mm Titanium GSAR at £2,475, compared with £1,700 for the steel GSAR.
That is a sizeable increase, but the titanium case, revised dial details and longer-running movement give the new model a broader update than a simple material swap.
Details & Specifications
| Brand | Marathon |
|---|---|
| Model | 41mm Titanium GSAR |
| Full name | Government Search and Rescue |
| Case size | 41mm |
| Case thickness | 13.5mm |
| Case material | Grade 5 titanium |
| Case finish | Brushed |
| Weight saving | 30% lighter than an equivalent steel watch |
| Water resistance | 300m |
| Bezel | 120-click unidirectional titanium dive timer bezel |
| Crown | Oversized hobnail-grip crown at 3 o’clock |
| Dial features | Updated typography, white-on-black date wheel and tritium gas tubes |
| Movement | Sellita SW200-2 Top Grade |
| Power reserve | 65 hours |
| Strap | Black rubber strap with titanium pin buckle |
| Price | £2,475 |
The 41mm Titanium GSAR doesn’t reinvent Marathon’s search-and-rescue watch, and it doesn’t need to.
Its appeal is in the disciplined nature of the upgrades, with less weight, better autonomy and cleaner legibility applied to a format that already knew its purpose.
