The Wristwatch Field Guide

De Bethune DB25 Perpetual Calendar (titanium)

The De Bethune DB25 Perpetual Calendar (titanium) is a current-production watch with a grade 5 titanium case, finished with polished titanium. The caseback is open, so the movement is visible.

All De Bethune watchesExotic-material other watchesTitaniumDisplay back
Material
Titanium
Grade / type
Grade 5
Water resistance
30 m
Type
Other
Price
– · high horology
Case diameter
40.0 mm
Origin
Switzerland
Movement
Automatic perpetual calendar
Caliber
De Bethune DB2324
Power reserve
5 days
Complications
Perpetual calendar
Colour
Grey
Surface treatment
Polished titanium
Caseback
Titanium
Nickel-free
Not verified (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
Yes
Dial
Silver guilloche
Dial colours
Silver
Availability
Offered
Status
Current
Not published
Reference, Thickness, Lug-to-lug, Weight, Hardness, Construction, Matching bracelet, Lume
High confidence Verified Jun 2026 Source: De Bethune
Facts are free to cite with a link.
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Frequently asked questions

What is the case material of the De Bethune DB25 Perpetual Calendar (titanium)?

The De Bethune DB25 Perpetual Calendar (titanium) has a grade 5 titanium case with a titanium caseback. This is confirmed against the maker spec.

What size is the De Bethune DB25 Perpetual Calendar (titanium)?

It is 40.0 mm in diameter, and water resistant to 30 m.

How much does the De Bethune DB25 Perpetual Calendar (titanium) cost, and is it available?

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

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