The Titanium 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.

Titanium other watchesGrade 5 titaniumPerpetual calendarDisplay back
Titanium
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
Case shape
Round
Case colour
Natural / grey
Finish technology
Natural finish
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, Titanium bracelet, Lume Help verify
High confidence Verified Jun 2026 Source: De Bethune Maker / listing ↗
Facts are free to cite with a link.
Reader reviews & photosContribute photo or review
No reviews yet. Be the first to write one.
See it in the interactive guideGet new-watch alertsContribute a photo or review

Browse all titanium watch comparisons →

Similar titanium watches

Swiss Watch Company Hyper-GSwiss Watch CompanyHyper-G$59540.5 mm10.8 mm thick56 gOthersame category · same style · similar size · same movement
Ochs und JuniorAnno Sandblasted Annual Calendar (titanium)$5,70042.0 mmOthersame category · same style · similar size · same movement
BreguetMarine 5517$19,90040.0 mm11.5 mm thickOthersame category · same style · similar size · same movement
Roger DubuisExcalibur Monobalancier 42mm (titanium)$54,00042.0 mmOthersame category · same style · similar size · same movement
Roger DubuisExcalibur Monobalancier 42mm (black DLC titanium)$56,00042.0 mmOthersame category · same style · similar size · same movement
TAG HeuerMonaco Speed 12 Titanium$87,00040.0 mmOthersame category · same style · similar size · same movement
Armin StromGravity Equal Force Titanium–41.0 mmOthersame category · same style · similar size · same movementCyrus Klepcys DICE Racing (titanium)CyrusKlepcys DICE Racing (titanium)–42.0 mmOthersame category · same style · similar size · same movement

Alternatives to the De Bethune DB25 Perpetual Calendar (titanium)

Cadisen Titanium TI-7 AutodyneCadisenTitanium TI-7 Autodyne$13040.0 mm11.5 mm thick58 gOthersame category · same style · similar size · same movementThorn T018 PT5000 Retro TitaniumThornT018 PT5000 Retro Titanium$18941.9 mmOthersame category · same style · similar size · same movementBoderry SeaTurtle.Ocean TitaniumBoderrySeaTurtle.Ocean Titanium$19940.0 mm12.5 mm thick72 gOthersame category · same style · similar size · same movement
Eclat GroveForest Guardian$33940.0 mmOthersame category · same style · similar size · same movementKRONOSTI STRUC Time ShuttleKRONOSTISTRUC Time Shuttle$35842.0 mm16.6 mm thickOthersame category · same style · similar size · same movementSpinnaker Hull Titanium Bronze Automatic Lapidary LESpinnakerHull Titanium Bronze Automatic Lapidary LE$42542.0 mmOthersame category · same style · similar size · same movement

More titanium watches from De Bethune

De BethuneDB28XS Purple Rain (titanium)–38.7 mmOther
De BethuneDB25 Starry Varius (titanium)–42.0 mmOtherDe Bethune DB28xs Kind of Blue TourbillonDe BethuneDB28xs Kind of Blue Tourbillon$225,00038.7 mm8 mm thickOther

Frequently asked questions

What grade of titanium is 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.

All titanium De Bethune watches · Titanium other watches · All 1,175 watches

Learn: Titanium grades · Surface treatments · Why titanium scratches · How to read a spec

How we verify & grade · Image & Trademark Policy · Terms & Conditions