Tourbillon Heure Minute

From complication to simplicity; the Tourbillon Hour Minute AK-02 is the second timepiece created by AkriviA, and it is all about the purity of time. While the tourbillon is not traditionally considered a complication, it remains a challenging mechanism to implement. When built well, the tourbillon enhances the chronometric performance of a timepiece by averaging out positional errors.
Even though the AK-02 lacks an obvious seconds hand, the one-minute rotation of the tourbillon cage effectively functions as a hyper-precise seconds indication. The dial display focuses on simplicity, but simple doesn’t mean easy. Hours and minutes by hand, hyper-precise seconds by tourbillon. AkriviA is Greek for “precision” — the Tourbillon Hour Minute AK-02 is precision embodied.
MOVEMENT
Manually wound movement
DIMENSIONS
30.00 mm x 7.40 mm
POWER RESERVE
100 hours
BALANCE WHEEL
Gold timing screws
DIAMETER
9.60 mm
FREQUENCY
21,600 vph
TOURBILLON
0.45 g, Swiss anchor escapment, 60 seconds rotation
COMPONENTS
163
DISPLAYS
Hours, minutes
DECORATION
36 inward angles, black polish, Côtes de Genève, hand graining, hand polishing, rhodium finishing, manual circular graining, hand engraved, handblueing circular dial
CASE
Steel, 43 mm x 12.90 mm, case composed of 30 parts, front and back sapphire glass crystal with anti-reflective treatment
WATER RESISTANCE
3 ATM (30 meters)
DIAL
Grey steel dial “matte-polished”
STRAP
Hand-sewn blue alligator strap
CLASP
Pin buckle with hand-engraved AkriviA logo