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Radium Instruments .42 OP5

The Radium Instruments .42 OP5 is a 42 mm Grade 5 titanium watch with a Sellita SW200-1 automatic movement.

All Radium Instruments watchesOther watchesMicrobrandGrade 5 titanium
Material
Titanium
Grade / type
Grade 5
Water resistance
200 m
Type
Other
Price
– · NOK 38,660 on the maker store (radiuminstruments.no, base currency NOK). The store's US presentment is a converted figure and NOK is not among the guide's supported currencies, so no dollar price is recorded
Case diameter
42.0 mm
Thickness
13.3 mm
Origin
Norway
Movement
Automatic
Caliber
Sellita SW200-1
Complications
Time only
Colour
Grey
Surface treatment
None
Finish technology
Natural finish
Nickel-free
Unconfirmed (contact-point materials not all confirmed)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
No
Dial
Black
Dial colours
Black
Availability
Offered
Status
Current
Not published
Reference, Lug-to-lug, Weight, Power reserve, Hardness, Construction, Caseback, Matching bracelet, Lume
High confidence Verified Oct 2026 Source: Radium Instruments (.42 OP5, maker product page)
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Frequently asked questions

What grade of titanium is the Radium Instruments .42 OP5?

Grade 5, as stated by the maker.

What size is the Radium Instruments .42 OP5?

The case is 42 mm across and 13.3 mm thick. It is water resistant to 200 m.

How much does the Radium Instruments .42 OP5 cost, and is it available?

It is in production, but the maker does not publish a price.

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