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De Bethune DB25 Perpetual Calendar (titanium)

Archive · used only

The De Bethune DB25 Perpetual Calendar (titanium) was a 40 mm Grade 5 titanium watch with a De Bethune DB2324V2 automatic movement. With a 120-hour power reserve, it runs longer than 94% of the 1,109 mechanical titanium watches with a stated reserve. It is no longer made, so this page is a reference for buying one used.

All De Bethune watchesOther watchesGrade 5 titaniumPerpetual calendarDisplay back
Material
Titanium
Grade / type
Grade 5
Water resistance
30 m
Type
Other
Price
– · high horology
Case diameter
40.0 mm
Thickness
11.3 mm
Origin
Switzerland
Movement
Automatic perpetual calendar
Caliber
De Bethune DB2324V2
Power reserve
5 days
Complications
Perpetual calendar
Colour
Grey
Surface treatment
Polished titanium
Finish technology
Natural finish
Caseback
Titanium
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
Yes
Dial
Bicolour silver and blue hand-guilloche, blued titanium starry sky with rose gold stars
Dial colours
Silver Blue
Availability
No longer offered
Status
Retired; every De Bethune DB25 perpetual calendar in titanium is filed under Historical Pieces except the Perpetual Sky, which this guide holds separately
Not published
Reference, Lug-to-lug, Weight, Hardness, Construction, Matching bracelet, Lume
Medium confidence Verified Sep 2026 Source: De Bethune (maker archive index) Spec checksGrade Sep 2026
Facts are free to cite with a link.
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Frequently asked questions

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

Grade 5, from a secondary source. The guide has not yet read the grade on the maker's own page. The caseback is titanium too.

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

The case is 40 mm across and 11.3 mm thick. It is water resistant to 30 m.

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

It is no longer made, so the only way to buy one is used.

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