The Titanium Field Guide

Arken Alterum

The Arken Alterum is a current-production integrated bracelet watch with a Grade 2 (treated) titanium case, finished with blasted. At 72 g it sits among the lighter integrated bracelet watches in the guide, and is priced well under the $13,300 median for the category. Nothing touching the skin is nickel-bearing steel, verified across the case, caseback and bracelet.

Titanium integrated bracelet watchesUnder $1,000MicrobrandLightweightLightest, rankedOn a titanium braceletGMT
Price
$800
Titanium
Grade 2 (treated)
Weight
72 g (with bracelet)
Water resistance
200 m
Nickel-free
Yes
Type
Integrated bracelet
Case diameter
40.0 mm
Thickness
13 mm
Lug-to-lug
46 mm
Origin
United Kingdom
Movement
Automatic (dual-time)
Caliber
Arken ARK-9015DT (Miyota 9015 base)
Power reserve
42 h
Complications
GMT
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
Surface treatment
Blasted
Caseback
Titanium
Bracelet / strap
Titanium (integrated) / nylon
Titanium bracelet
Standard
Crystal
Sapphire
Display back
No
Dial
Grey / multiple
Dial colours
Grey
Lume
Super-LumiNova BGW9
Availability
Offered
Status
Current (pre-order; delivery Q4 2026 to Q2 2027)
Not published
Reference
High confidence Verified Jul 2026 Source: Fratello Maker / listing ↗
Facts are free to cite with a link.
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Frequently asked questions

Is the Arken Alterum nickel-free?

Yes. Nothing nickel-bearing touches the skin: a Grade 2 (treated) 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 Arken Alterum?

The Arken Alterum has a Grade 2 (treated) titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the Arken Alterum?

It is 40.0 mm in diameter, 13 mm thick, 46 mm lug to lug, and water resistant to 200 m.

How much does the Arken Alterum weigh?

About 72 g (w/ bracelet).

How much does the Arken Alterum cost, and is it available?

It is current-production and lists from $800.

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