HYSEK launched the IO Automatic Manufacture in July 2018 and even if the piece is considered to be a simple Hour-Minutes / small seconds (at 6 o’clock), i was very surprised by one element :
The Micro-rotor

First, i want to say that it's quite pleasant to discover a new Manufacture caliber. 95% of the parts are produced in-house and the brand is planning to use it as a base for future projects. Of course, we’ll keep you posted on its evolution.

Design-wise, the Hysek’s « eccentricity » (well known amongst their aficionados) is this time, only on the dial. The objective here is to be more « classic » and a bit original at the same time. The Hour markers at 1, 5, 7, and 11 form a rectangle and the honeycomb pattern of the dial is inspired by the graphite molecule. Why not ?

Looking at the back, i discovered a pretty nice execution. The type of quality that someone would expect on a 10K price tag.

The big surprise came when the Micro-rotor was shown to me ! The part has actually a slit in its center. It’s related to the central yellow wheel which due to its size, goes through the Micro-rotor. That’s for sure an interesting approach! and i can’t wait to get some feedback in the next months.

Available in 43 + 41 mm of diameter / 18K Rose Gold + Titanium cases, Hysek enters a new segment and i wish them the best with this superb Manufacture movement.

Well done! HYSEK.


Calibre HW31
Self winding (Micro-rotor)
Power reserve: 62 hours
Frequency: 28’800 vph
Jewels: 32
Components: 145

Diameter : 43,00 mm
Material: Titanium
Water resistance : 30 meters