The Titanium Field Guide

Angles Watches KOI-5 Automatic

The Angles Watches KOI-5 Automatic is a 41 mm Grade 2 titanium watch with a Miyota 9039 automatic movement.

All Angles WatchesOther watchesUnder $1,000MicrobrandUnder 11 mm thickOn a titanium braceletDisplay back
Price
$560
Material
Titanium
Grade / type
Grade 2
Water resistance
50 m
Type
Other
Case diameter
41.0 mm
Thickness
8.8 mm
Origin
France
Movement
Automatic with wandering-hour module
Caliber
Miyota 9039
Power reserve
36 hours
Complications
Time only
Colour
Grey
Surface treatment
None
Finish technology
Natural finish
Caseback
Sapphire (display back)
Nickel-free
Unconfirmed (clasp or buckle material not confirmed)
Bracelet / strap
Grade 2 titanium bracelet with deployant clasp, plus grey silicone strap
Matching bracelet
Standard
Crystal
Double-domed sapphire, AR
Display back
Yes
Dial
Grey, green
Dial colours
Grey Green
Lume
Swiss Super-LumiNova
Availability
Offered
Status
Current (between batches)
Not published
Reference, Lug-to-lug, Weight, Hardness, Construction
High confidence Verified Oct 2026 Source: Angles Watches, KOI-5 Cool Grey (maker product page) / Angles Watches, KOI-5 Titan Green (maker product page)
Facts are free to cite with a link.
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Frequently asked questions

What grade of titanium is the Angles Watches KOI-5 Automatic?

Grade 2, as stated by the maker. The caseback is sapphire (display back).

What size is the Angles Watches KOI-5 Automatic?

The case is 41 mm across and 8.8 mm thick. It is water resistant to 50 m.

How much does the Angles Watches KOI-5 Automatic cost, and is it available?

It is in production, at a list price of $560.

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