Case: 18k white gold, diameter 45.6 mm, sapphire crystal case-back.

Dial: silver dial, ruthenium diamond point finish, applied hour and minute counters, Côtes de Genève finish at center. 

Movement: mechanical manually-wound, tourbillon, 44 jewels, 28,800 vibrations per hour, 110-hour power-reserve.

Functions: hours, minutes, seconds on the tourbillon, big date, power-reserve indicator on case-back.

Water-Resistance: 50 meters. 

Strap: black alligator, 18k white gold ardillon buckle.   

Reference: OCEMTD45WW001

Limited edition of 25 pieces.

Harry Winston timepieces are manufactured in Geneva, the fine watchmaking capital of the world.