Jan Mayen Black Sand

Name: Jan Mayen Black Sand
Brand: Straum
SKU: WATCH-JANMAYEN-CPL-02-SS-BLACK-39-BRACELET
Price: 23750.0 NOK
Availability: InStock

23.750,00 NOK

Case material

Titanium Grade 5 Stainless Steel

Product variants

VAT included. No additional fees.

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Key technical specifications

39mm diameter. 10ATM. Sapphire crystal. 316L Steel.

Free shipping and returns. 2-year warranty.

Complete your kit

Micro-Adjust Clasp Steel

Strap Adapters

STRAUM × ZULUDIVER OctoPod MK3 Buckle 20mm

Reviews

"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."

April 12, 2023

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“It's all about that dial. It's very unique.”

June 22, 2025

"It's amazing. I love it. It's like Grand Seiko, but evil."

November 21, 2023

"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."

June 11, 2023

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Capturing nature

The Black Sand Dial

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.

316L Stainless Steel Case

Crafted from robust 316L Stainless Steel, our 39mm case offers exceptional corrosion resistance and long-term reliability. A striking sunburst bezel secures the double-domed sapphire crystal for superior scratch defense. Featuring a grippy screw-down crown, the case maintains a secure 10 ATM water resistance.

Band Selection

Select between our premium 316L Stainless Steel Bracelet or high-performance FKM Rubber Straps.

The Bracelet features a seamless integrated design that tapers comfortably from 24.8mm to 18mm, securing with a custom push-button butterfly clasp. Two 130% precision links guarantee a perfectly tailored fit.

Alternatively, the FKM Rubber Straps integrate seamlessly via the proprietary Straum Coupling. Their curved tip follows the wrist’s natural shape while a raised profile maximizes ventilation. Each strap is finished with a dedicated machined Straum buckle.

Movement

G101 by La Joux-Perret

The Jan Mayen Collection employs the G101 by La Joux-Perret—an automatic, dateless movement with a 68-hour power reserve. Graded Soigné and adjusted in four positions, it’s visible through a sapphire screw-down caseback.

Unboxing experience

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

Certification	Swiss Made
Diameter	38.7mm.
Case width	40.7mm (direction 9 to 3 including crown).
Thickness	11.5mm (9.7mm excluding the crystal).
Lug tip to lug tip	45.7mm (seen from side).
Drilled lug hole center-to-center	42.5mm (seen from side).
Lug width	24.8mm (seen from top)
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. Indices filled with Swiss Super-LumiNova Grade A.
Hands	Diamond-cut and filled with Swiss Super-LumiNova Grade A.

Bracelet

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.

Movement

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

Dimensions

Video

Our Expedition to 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.

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