KAJ KORPELA - BERNE SWITZERLAND

TECHNICAL DETAILS

Dimensions of case

 

43.4 x 25.7 x (height) 8.5 mm

Movement size

 

31.7 x 20, 7 mm

Movement characteristics

 

- 1 MINUTE TOURBILLON

 

 

- FREESPRUNG BeCu BALANCE WITH 4

PLATINUM INERTIA WEIGHTS, 21'600 VPH

(3Hz)

 

 

- HAIRSPRING WITH PHILLIPS TERMINAL

CURVE

 

 

- SWISS LEVER ESCAPAMENT

 

 

- 60 HOURS POWER RESERVE

 

 

- MANUAL WINDING

The complete prototype

The movement at an earlier stage