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Mechanical minimalism in Musou black. ACHROMATIC pairs a deep black open-heart dial with a sculpted 40 mm stainless steel case and the SANDAHL SC110 automatic calibre. With 200 m water resistance, its architectural design is ready for everyday wear.
MUSOU BLACK
Developed in Japan, Musou Black has a microscopic surface structure that traps light, creating an exceptionally deep, ultra-matte black. The manufacturer reports absorption of up to 99.4% of visible light, depending on application. Against this dark backdrop, the hands and open-heart movement appear almost suspended above the dial.
This delicate finish has been a demanding part of developing ACHROMATIC Musou. Even light contact can mark the coating, so creating and assembling the dial in our Nynäshamn workshop calls for exceptional care and precision. In the finished watch, the dial sits beneath sapphire crystal, protected from direct touch.
Made in Sweden · Individually regulated and tested · Free shipping · 24-month warranty
A note on product images
Most product images on our website are digital renderings. They are created to represent our watches as faithfully as possible, but colours, surface textures and the appearance of materials may differ slightly from the physical watch. Lighting, reflections and your screen settings can all influence how these details appear.
Our hand-finished dials may also show subtle variations from one watch to another, reflecting the individual finishing process.
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achromatic
FORM REDUCED TO ESSENCE
SANDAHL WATCHES
crafted in detail
ACHROMATIC is shaped by the details — clean geometry, brushed steel, balanced proportions and mechanical depth.

case
Brushed steel and polished edges define the architectural case.

dial
An open-heart dial reveals the mechanical movement within.

crown
The SANDAHL trident is engraved on the crown.

colour
Deep dial colour adds depth to the clean steel construction.
SPECIFICATIONS
- Diameter
- 40 mm
- Lug-to-lug
- 45.5 mm
- Thickness
- 12 mm
- Crystal
- Sapphire crystal
- Dial
- 29 mm Musou Black, ultra-matte
- Movement
- SC110 automatic, self-winding
- Water resistance
- 20 ATM / 200 metres
- Strap / bracelet
- 23/18 mm stainless steel
- Extra strap included
- Black rubber strap
- Caseback
- Engraved stainless steel, screw down
- Crown
- Screw down
THE MOVEMENT
MECHANICAL AT HEART
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