Twenty-8-Eight Skeleton Tourbillon

From DeWitt -

Courtesy of DeWitt

TWENTY-8-EIGHT SKELETON TOURBILLON T8.TH.024 

Courtesy of DeWitt

Here's the scoop, straight from the source -

Calibre: 

Reference
DW8028s

Movement
Mechanical and skeletonized manually wound movement 
integrating a Tourbillon manufactured by DeWitt 

Diameter 

33 mm

Functions
Hours, minutes

Power reserve
72 hours

Vibrations
18,000 Vph

Balance
Variable-inertia balance

Spiral
Spiral with Breguet curve sequenced at 2.5 Hz. 

Escapement
44° angle of lift

Jewelling

19

Number of components
185 

Case: 

Case	Round case, adorned with DeWitt imperial columns on the sides
Material	18-carat white gold
Diameter	43 mm
Total Thickness	10,28 mm
Crown	18-carat white gold, polished, ring in blackened titanium featuring the “W” signature
Case back	Sapphire crystal, secure with screws
Distance between lugs	21 mm

Hands	Hours and minutes : open-worked hands in the form of double-edged swords, silver colour tone