Gronefeld 1941 Quadrivium Tantalum
Archive · used only
The Gronefeld 1941 Quadrivium Tantalum was a 40 mm tantalum dress watch with a Calibre G-09 hand-wound movement. It is no longer made, so this page is a reference for buying one used.
1 official photo · reader photos welcome
Price
≈$315,561 (€280,000)
Material
Tantalum
Grade / type
Tantalum
Weight
108 g (with strap)
Water resistance
30 m
- Type
- Dress
- Case diameter
- 40.0 mm
- Thickness
- 11.3 mm
- Origin
- Netherlands
- Movement
- Manual, one-minute flying tourbillon with 7.5-second remontoire, central jumping (dead) seconds and power reserve indicator
- Caliber
- Calibre G-09
- Power reserve
- 50 hours
- Complications
- Tourbillon, Power reserve
- Colour
- Grey
- Construction
- Assembled
- Finish technology
- Natural finish
- Caseback
- Sapphire
- Nickel-free
- Unconfirmed (bracelet, strap, or clasp hardware not confirmed)
- Bracelet / strap
- Hand-sewn leather strap (20 mm to 18 mm), tantalum pin buckle
- Crystal
- Sapphire
- Display back
- Yes
- Dial
- Frosted brass dial with applied stainless steel segments and white gold hour markers, choice of five colours (Sand shown)
- Dial colours
- White Champagne
- Availability
- No longer offered
- Status
- Premiere Edition of 28, sold out with a wait list; deliveries late 2026 to early 2027
- Not published
- Reference, Lug-to-lug, Hardness, Surface treatment, Matching bracelet, Lume
High confidence
Verified Sep 2026
Source: Gronefeld (maker) / Gronefeld news: Bart and Tim unveil the 1941 Quadrivium
Facts are free to cite with a link.
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Frequently asked questions
What is the case of the Gronefeld 1941 Quadrivium 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 Quadrivium 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 Quadrivium Tantalum weigh?
About 108 g on its strap.
How much does the Gronefeld 1941 Quadrivium 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 $315,561.
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