ZENITH Defy Double Tourbillon El Primero 9020 45mm Watch lab-grown-diamonds See-Through & Screw Case Back:

See-Through & Screw Case Back: The case back is transparent and secured with six screws

as timeless and brilliant as the diamonds it holds

These fresh renditions will undoubtedly captivate the hearts of women who see charm as an innate way of life

powers the new Seiko Prospex Alpinist Mechanical GMT

an emblem of elegance encrusted with 0

ZENITH Defy Double Tourbillon El Primero 9020 45mm Watch lab-grown-diamonds See-Through & Screw Case Back:High frequency Haute Horlogerie in its most rugged form: the DEFY Extreme Double Tourbillon features a 1 100th of a second chronograph in a carbon fibre and rose gold case, with a 60 second tourbillon driving the time and a 5 second tourbillon driving the chronograph for ultimate precision.