The Wristwatch Field Guide

Montblanc 1858 Geosphere 42mm Titanium (bracelet)

125567 Archive · used only

The Montblanc 1858 Geosphere 42mm Titanium (bracelet) is a discontinued watch with a grade 5 titanium case, finished with satin and polished; ceramic bezel. It is priced well above the $1,500 median across the guide. It ships on a matching exotic-material bracelet rather than a strap. No longer offered new; listed here as an archive reference for the used market.

All Montblanc watchesExotic-material other watchesTitaniumDisplay back
Price
$6,900
Material
Titanium
Grade / type
Grade 5
Water resistance
100 m
Reference
125567
Type
Other
Case diameter
42.0 mm
Thickness
12.8 mm
Origin
Germany
Movement
Automatic (worldtime)
Caliber
Montblanc MB 29.25
Power reserve
42 h
Complications
Worldtimer, Date
Colour
Grey
Surface treatment
Satin and polished; ceramic bezel
Caseback
Titanium
Nickel-free
No (steel contact)
Bracelet / strap
Titanium and steel bracelet
Matching bracelet
Standard
Crystal
Sapphire
Display back
Yes
Dial
Blue
Dial colours
Blue
Lume
Super-LumiNova
Availability
No longer offered
Status
Discontinued (no live maker page; line moved to 1858 Geosphere 0 Oxygen)
Not published
Lug-to-lug, Weight, Hardness, Construction
Medium confidence Verified Jul 2026 Source: Montblanc
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Frequently asked questions

Is the Montblanc 1858 Geosphere 42mm Titanium (bracelet) nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What is the case material of the Montblanc 1858 Geosphere 42mm Titanium (bracelet)?

The Montblanc 1858 Geosphere 42mm Titanium (bracelet) has a grade 5 titanium case with a titanium caseback. It is recorded at medium confidence pending a maker-stated material.

What size is the Montblanc 1858 Geosphere 42mm Titanium (bracelet)?

It is 42.0 mm in diameter, 12.8 mm thick, and water resistant to 100 m.

How much does the Montblanc 1858 Geosphere 42mm Titanium (bracelet) cost, and is it available?

It is no longer offered new; the guide keeps it as an archive reference for the used market, and it listed from $6,900 when current.

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