Slide k-011/os-01 ti mécanique contemporaine genève no shell - pure passion

grade 5 titanium unibody baseplate

manufactured calibre 0s-01

nothing to hide.
everything to show.

Right from the conception, the k-011/os-01 was born from a simple idea: Wear the baseplate directly on the wrist and thus the unique aesthetics was devised.

While being contemporary it keeps a true and pure horological spirit. The beauty and heart of the watch movement are not hidden in a shell, both sides are wide open.


oversized tourbillon

We wanted our 60 second 2,5hz Tourbillon regulator to be large enough to fit in a 48mm diameter baseplate. With a 14 mm balance wheel, a cage diameter of 19 mm, our Tourbillon can be appreciated by the naked eye.

sequential trigger dead beat second

The stepped- and constant-wheel are placed on top of each other. They catch up to each other every second. The sequential trigger work together for an accurate true second dance.

pellaton automatic winding system

For increased winding efficiency, we have chosen to employ a Pellaton.

platinum skeletonized micro rotor

Platinum with its high density of 21.45 g/cm³ was the logical choice for a micro rotor to create the necessary energy for the movement. This gives the rotor enough mass to wind our two springs barrel.

your style

From the strap to the Titanium bridge, the hands or the base plate, show your personality and make karoshi watches match your style.


strictly limited edition 99 pieces.

technical specifications

skeleton Titanium grade 5 micro-blasted unibody baseplate

diameter 48 mm

weight 21 g

calibre karoshi os-01

mechanical self winding movement

power reserve 50 hours

318 components / 45 jewels

2,5Hz (18’000 vph) balance frequency oscillation

14 mm balance wheel

sequential trigger dead beat second

Platinum micro blasted micro rotor (11,6 g)

Pellaton winding system

Titanium grade 5 bridges

chamfer and Maret polishing and on steel components

burnished pivots

circular decorations on all wheels

Geneva stripes decoration on back bridges

chamfered and polished screws

unibody rubber or leather strap

Titanium grade 5 triple folding clasp, karoshi skull cover

Sapphire crystal with internal and external anti-reflective treatment 

9.6 mm edge thickness

thickness at the center of the sapphire glasses 14,2 mm

4dauphine hands

diameter 50 mm

weight 64 g

water resistance up to 3 atm / 30 m / 100 ft

designed, developed and manufactured in Switzerland

information request

©karoshi watches 2016-2019

karoshi sàrl – rue Saint-Léger 8 – 1205 Geneva – Switzerland