The Bronze Field Guide

Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze)

MB129415

The Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze) is a current-production field watch with a bronze (grade not stated by maker) case. It is priced well above the $1,165 median for the category.

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Price
$6,500
Alloy
Bronze (grade not stated)
Water resistance
100 m
Reference
MB129415
Type
Field
Case diameter
42.0 mm
Thickness
12.8 mm
Origin
Germany
Movement
In-house automatic
Caliber
MB 29.25
Power reserve
42 hours
Complications
Worldtimer, Date
Construction
Assembled
Nickel-free
Not verified (contact-point materials not all confirmed)
Bracelet / strap
Blue Sfumato calf leather strap with bronze-coated stainless steel triple-folding clasp
Crystal
Sapphire (domed, anti-reflective)
Display back
No
Dial
Blue Sfumato gradient
Dial colours
Blue
Lume
Super-LumiNova
Availability
Offered
Status
Current (limited edition, 1786 pieces)
Not published
Lug-to-lug, Weight, Colour, Hardness, Surface treatment, Caseback, Bronze bracelet
Medium confidence Verified Jul 2026 Source: Montblanc / Escapement
Facts are free to cite with a link.
See it in the interactive guide

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More bronze watches from Montblanc

Montblanc1858 Automatic Bronze$3,00040.0 mmField
Montblanc1858 Geosphere Bronze$6,10042.0 mm12.8 mm thickField
Montblanc1858 Monopusher Chronograph Limited Edition–42.0 mm14.7 mm thickChronograph
Montblanc1858 Split Second Chronograph Limited Edition (Bronze)$33,00044.0 mm14.55 mm thickChronographMontblanc 1858 Iced Sea Automatic Date BronzeMontblanc1858 Iced Sea Automatic Date Bronze$4,70041.0 mmDiver

Frequently asked questions

What bronze alloy is the Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze)?

The Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze) has a bronze (grade not stated by maker) case. It is recorded at medium confidence pending a maker-stated alloy.

What size is the Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze)?

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

How much does the Montblanc 1858 Geosphere 0 Oxygen Limited Edition (Bronze) cost, and is it available?

It is current-production and lists from $6,500.

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