Straum Jan Mayen Basalt Radiant Mist

The Jan Mayen Basalt Lume dial is carefully crafted from volcanic basalt rock, selected for its porous, unique structure. The brittle material undergoes a multi-step process of stabilization to strengthen it without compromising its natural texture. Precision tools are used to cut ultra-thin wafers, which are then ground, polished, and treated with resin to enhance durability and achieve optical clarity. The wafer is bonded to a fully lumed base dial with a fumé treatment, producing a gradient glow that emanates subtly from the center outward, while retaining legibility. Finished with a chapter ring, this process results in a truly one-of-a-kind watch face that captures the raw beauty of the basalt and showcases nature’s powerful forces.

Every Jan Mayen Basalt dial is a piece of the island’s volcanic history, made from basalt rock collected during our expedition to the remote island of Jan Mayen. These rocks, formed from molten lava, are unique—no two dials are the same, each revealing distinct patterns created by the solidification of lava and trapped gas pockets.

Our journey to obtain these rare stones was a two-year endeavor, including a 10-day voyage to scale the Beerenberg volcano. Each basalt dial is a testament to that journey, containing a part of the island’s raw, untamed beauty.

The bracelet is custom designed and crafted from 316L stainless steel, featuring an integrated structure that tapers smoothly from 24.8mm to 18mm at the buckle for both comfort and a secure fit. Each link is CNC machined to very high tolerances, ensuring precise separation of surface finishes, while the inside edges are chamfered and polished for a comfortable, pinch-free wearing experience. The push-button butterfly clasp provides a seamless closure, and two 130% links offer added versatility for a tailored fit. Designed to perform in both rugged landscapes and urban environments, the bracelet includes a pin-and-collar system with sizing tools for easy adjustment.

The Jan Mayen Basalt case is made from 316L stainless steel, offering high resistance to corrosion and wear. Measuring 39mm in diameter, it combines practicality with a balanced, comfortable fit.

The sunburst bezel frames the dial, while the double-domed sapphire crystal ensures excellent scratch resistance and clear visibility. Finished to a very high standard, the case features precise detailing, creating a refined yet durable exterior. With a screw-down crown and 10ATM water resistance, the case is designed to endure both everyday conditions and more challenging environments.

The Jan Mayen Basalt features the LJP G101 movement by La Joux-Perret, renowned for its precision, craftsmanship, and a reliable 68-hour power reserve. This time-only display allows for an uninterrupted view of the dial's unique basalt design. The movement is Soigné graded and NAC-treated, ensuring both enhanced durability and an elegant finish. Adjusted to four positions for precise timekeeping, the movement and engraved rotor are visible through the sapphire crystal window on the screw-down caseback.

Every Jan Mayen comes bundled with a Straum Capsule, designed to keep your watch protected against the elements and is machined from a single block of aluminium and surface treated with a HA1 Hard Anodization process to increase durability.⁠