Arken Alterum
The Arken Alterum is a 40 mm Grade 2 titanium integrated-bracelet sports watch with an Arken ARK-9015DT automatic movement. At a list price of $832, it costs less than 94% of the 93 titanium integrated-bracelet sports watches in production, leaving out the fashion brands. Rated to 200 m, no other titanium integrated-bracelet sports watch in the guide goes deeper, out of 115. On the maker's specification no steel touches the skin, so the guide lists it as nickel-free.
- 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
- Colour
- Grey
- Surface treatment
- Blasted
- Finish technology
- Natural finish
- Caseback
- Titanium
- Nickel-free
- Maker states none
- Bracelet / strap
- Titanium (integrated) / nylon
- Matching 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, Hardness, Construction
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Is the Arken Alterum nickel-free?
On the maker's published specification, nothing that touches the skin is steel: the case, caseback, crown and bracelet with its clasp are all non-steel. The guide records what the maker publishes and has not tested the watch, so if you react to nickel, confirm the contact points with the maker before buying.
What grade of titanium is the Arken Alterum?
Grade 2, as stated by the maker. The caseback is titanium too.
What size is the Arken Alterum?
The case is 40 mm across, 13 mm thick and 46 mm from lug to lug. It is water resistant to 200 m.
How much does the Arken Alterum weigh?
About 72 g on its bracelet.
How much does the Arken Alterum cost, and is it available?
It is in production, at a list price of $832.
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