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Gronefeld 1941 Gronograaf Tantalum

Archive · used only

The Gronefeld 1941 Gronograaf Tantalum was a 40 mm tantalum chronograph with a Calibre G-04 hand-wound movement. It is no longer made, so this page is a reference for buying one used.

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Price
≈$185,955 (€165,000)
Material
Tantalum
Grade / type
Tantalum
Water resistance
30 m
Type
Chronograph
Case diameter
40.0 mm
Thickness
11.3 mm
Origin
Netherlands
Movement
Manual, column-wheel chronograph
Caliber
Calibre G-04
Power reserve
56 hours
Complications
Chronograph
Colour
Grey
Construction
Assembled
Finish technology
Natural finish
Caseback
Sapphire
Nickel-free
Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
Yes
Dial
Frosted
Availability
No longer offered
Status
Archive (25 pieces, sold out)
Not published
Reference, Lug-to-lug, Weight, Hardness, Surface treatment, Matching bracelet, Lume
High confidence Verified Sep 2026 Source: Gronefeld (maker) / GPHG Spec checksCase material Jul 2026Price Jul 2026
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Frequently asked questions

What is the case of the Gronefeld 1941 Gronograaf Tantalum made of?

The case is tantalum. That is confirmed against the maker's specification. The caseback is sapphire.

What size is the Gronefeld 1941 Gronograaf Tantalum?

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

How much does the Gronefeld 1941 Gronograaf Tantalum cost, and is it available?

It is no longer made, so the only way to buy one is used. Its list price when it was in production was $185,955.

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