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Jan Mayen Moss Green

Jan Mayen Moss Green

Regular price €1.600,00 EUR
Regular price Sale price €1.600,00 EUR
Taxes excluded.
Jan Mayen Moss Green captures the resilient mosses of Jan Mayen, draping the inhospitable landscape in a thick, gentle green carpet. The radial texture captures the faceted and jagged Arctic Moss, as it takes on the shape of the underlying landscape.
Price excludes VAT/TAX, Duties and Fees.
In stock. Ships 5th of August.
Buy now - €1.600,00
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

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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

The Moss Green Dial

Jan Mayen Moss Green captures the resilient mosses of Jan Mayen, draping the inhospitable landscape in a thick, gentle green carpet. The radial texture captures the faceted and jagged Arctic Moss, as it takes on the shape of the underlying landscape.

We carefully sculpt every dial detail in CAD software and then CNC machine a series of stamping tools with increasing fidelity. These are then used to stamp brass blanks in multiple stages, adding finer and finer details. Next, we apply multiple coatings, lacquers and fumés to establish depth and dimension. A final layer of clear coat is polished to a glass-like finish, resulting in a truly captivating visual experience. 

The applied logo and indices ensure contrast and legibility, while the ultra-sharp diamond-cut hands complement the intricately finished watch case. Additionally, all elements are coated with applied Super-LumiNova BGW9 for optimal visibility.


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.⁠

Technical specifications

Watch case

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.
Case 316L stainless steel.
Crown Screw-down, with manual winding.
Bezel 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.
Dial 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.
Hands 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.
Construction 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.

Sizing and fit

Minimum wrist circumference Approximately 13cm
Maximum wrist circumference Approximately 20cm. Additional links can be provided upon request to accommodate any size.
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"The blue [dial] that transitions from a bright azure blue to deeper, darker hues at the edges is simply mesmerizing. The casework is solid, with sharp transitions and attention to detail, like radial brushing on the bezel."
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