The Wristwatch Field Guide

Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue)

EK-WTA05IBASBK

The Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue) is a current-production other watch with a grey grade 5 case. It measures 42.0 mm across, 14.5 mm thick, and is water resistant to 50 m. Inside is the Edouard Koehn Cal. EK-MVTWTA01 automatic, world time with alarm movement, with 48 h power reserve. Complications: Worldtimer. Brand origin: Switzerland.

Titanium and ceramic other watchesTitaniumDisplay back
Reference
EK-WTA05IBASBK
Type
Other
Price
– · Price on request
Case diameter
42.0 mm
Thickness
14.5 mm
Lug-to-lug
–
Water resistance
50 m
Weight
–
Origin
Switzerland
Movement
Automatic, World Time with alarm
Caliber
Edouard Koehn Cal. EK-MVTWTA01
Power reserve
48 h
Complications
Worldtimer
Material
Titanium
Grade / type
Grade 5
Colour
Grey
Hardness
–
Construction
–
Surface treatment
–
Caseback
–
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Alligator strap (deployant buckle)
Matching bracelet
–
Crystal
Double AR sapphire
Display back
Yes
Dial
Ice Blue guilloche, grey matte central disc
Lume
Super-LumiNova
Availability
Offered
Status
Current
High confidence Verified Jun 2026 Source: Edouard Koehn (maker) Maker / listing ↗ Suggested by u/Potential-Peace6416
Facts are free to cite with a link.
See it in the interactive guide

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Frequently asked questions

What is the case material of the Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue)?

The Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue) has a grey grade 5 case. This is confirmed against the maker spec.

What size is the Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue)?

It is 42.0 mm in diameter, 14.5 mm thick, and water resistant to 50 m.

How much does the Edouard Koehn World Time Alarm EK-WTA05 (Ice Blue) cost, and is it available?

It is current-production; the guide does not list a price for it.

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