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Jan Mayen Black Sand

Jan Mayen Black Sand

Regular price €1.600,00 EUR
Regular price Sale price €1.600,00 EUR
Taxes excluded.
Jan Mayen Black Sand unveils the battered coastline of Jan Mayen, with its foreboding beaches made of black volcanic sand. The dial's jagged ridges capture the underwater landscape of miniature dunes, shaped by the perpetual motion of water. Delicate vertical stripes spring to life under specific lighting conditions, showcasing nature's boundless creativity crafted with only two elements––sand and water.
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Key technical specifications
39mm diameter. Stainless Steel 316L case and bracelet.

Free worldwide shipping & returns

Orders are shipped free of charge within two business day and are easily tracked. Return within 14 days for a full refund. Read more


24 month warranty

Our global after-sales partner network ensures a swift and easy process. Read more

Voyage to Beerenberg:Scaling the Volcanic Peak of Jan Mayen

Straum assembled an expedition unit and set off in search of the summit of Beerenberg. This is the story of how it went.
Experience the adventure

Capturing nature

Jan Mayen Dials

The dials capture the stunning natural beauty of Jan Mayen, encompassing the black volcanic sand beaches, vividly colored rocks, resilient mosses, and the fiery basaltic lava interior of the volcano Beerenberg. Each texture is carefully crafted and transformed into a series of stamping tools, progressively increasing in fidelity. The dials are stamped in multiple stages, layered with metallic coatings to add a sheen, infused with fumé colors, and finally coated with a glossy finish, resulting in a truly captivating visual experience.


Integrated bracelet

The bracelet is specially designed to endure the harsh conditions of the Arctic with its custom-engineered structure. It is made from Stainless Steel 316L and features a seamless integrated design that tapers from 24.8mm to 18mm at the buckle, ensuring a comfortable and snug fit on your wrist. The push-button butterfly clasp is custom-designed and seamlessly integrated, providing a sleek and secure closure for the bracelet. The two 130% links also allow for a precise and tailored fit to your wrist. Whether you're out in the wilderness or in the city, this bracelet is built to last and will withstand even the harshest environments.



The watch case combines durability, functionality, and aesthetics. It is crafted from 316L stainless steel, which provides resistance to corrosion and wear, ensuring long-lasting performance and reliability. With a diameter of 39mm, it offers a comfortable and practical size for everyday wear. The sunburst bezel frames the double-domed sapphire crystal, which provides exceptional scratch resistance and ensures crystal-clear visibility of the dials. The grippy screw-down crown ensures that the 10ATM water resistance is maintained.

The movement

LJP G101

The Jan Mayen collection utilizes the LJP G101 by La Joux-Perret, renowned for its high level of precision and quality, as well as its 68-hour power reserve. The time-only display provides an uninterrupted view of the watch face. The movement is graded Soigné and adjusted to four positions, ensuring accurate timekeeping. The movement and engraved rotor are visible through a sapphire window screw-down caseback.

The packaging

The Capsule

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.⁠

Product dimensions
Technical specifications
Diameter 39mm.
Thickness 11.3mm (9.9mm excluding the crystal).
Lug-to-lug 45.82mm lug-to-lug.
Lug width 24.8mm lug width.
ATM Rating 10 ATM.
316L stainless steel.
Screw-down, with manual winding.
316L stainless steel, sunburst brushed with polished chamfer.
Caseback 316L stainless steel, threaded screw-down with etched graphics and sapphire crystal window.
Crystal Double-domed scratch-resistant sapphire crystal with internal anti-reflective coating.

Custom designed patterns embodying the landscape of Jan Mayen. Stamped in multiple stages with increasing detailing and fidelity. Treated and painted in several stages, including fumé.


Diamond-cut and filled with Super-LumiNova.

Design Custom designed and manufactured stainless steel with a tapered shape across the first five links.
Manufacturing All links are CNC machined to very high tolerances and machined finished to ensure highly precise separation of surface finishings. Inside edges are chamfered and polished to ensure a very comfortable wearing experience with no pinching.


Pin and collar. Sizing tools included.
Clasp Machined butterfly deployant clasp with push buttons.
Dimensions Bracelet tapers from 24.8mm lug width to 18mm at the buckle.
Adjustments Two 130% links included to allow for a precise and tailored fit.
Manufacturer Manufacture La Joux-Perret S.A.
Model LJP G101 (no date position).
Functions Time only.
Grade Soigné, adjusted to four positions (CH, 3H, 6H, 9H).
Jewels 24 jewels.
Power reserve 68 hours.
Middle rate 7 ±7 s/d.
Max. divergence all positions 20 s/d.
Isochronism ±15 s/d.

"As a long-time fan of both Fratello and the microbrand scene at large, I really dig this latest LE with Straum, a brand that hit my own radar with their previous Opphav line."
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“It's all about that dial. It's very unique.”
"It's amazing. I love it. It's like Grand Seiko, but evil."