The Titanium Field Guide

Montblanc 1858 Geosphere 42mm Titanium (strap)

125565

The Montblanc 1858 Geosphere 42mm Titanium (strap) is a current-production other watch with a Grade 5 titanium case, finished with satin and polished; ceramic bezel. It measures 42.0 mm across, 12.8 mm thick, and is water resistant to 100 m. Inside is the Montblanc MB 29.25 automatic (worldtime) movement, with 42 h power reserve. Complications: Worldtimer, Date. Brand origin: Germany.

Titanium other watchesGrade 5 titaniumDisplay back
Reference125565
TypeOther
Price– · approx EUR 5,600; maker page pending
Case diameter42.0 mm
Thickness12.8 mm
Lug-to-lug–
Water resistance100 m
Weight–
OriginGermany
MovementAutomatic (worldtime)
CaliberMontblanc MB 29.25
Power reserve42 h
ComplicationsWorldtimer, Date
TitaniumGrade 5
Surface treatmentSatin and polished; ceramic bezel
Nickel-freeYes
Bracelet / strapCalfskin strap
CrystalSapphire
Display backYes
DialBlue
LumeSuper-LumiNova
AvailabilityOffered
StatusCurrent; maker page pending verification
Medium confidence Verified 2026-06-22 Source: Montblanc Maker / listing ↗
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