ZENITH Defy Skyline Tourbillon Skeleton El Primero 3630 SK Automatic 41mm Watch testing The handcrafted solid Au 585

The handcrafted solid Au 585 yellow gold nib shows a boxing glove

Weight: 72

These principles shine through in The Longines Sport Collection

Crafted from the finest 14K white and yellow gold

the refined timepiece is a daily wearing choice ready for work

ZENITH Defy Skyline Tourbillon Skeleton El Primero 3630 SK Automatic 41mm Watch testing The handcrafted solid Au 585The DEFY Skyline Tourbillon Skeleton marks a new chapter for the collection, where transparency becomes structure, and mechanical complexity takes on an architectural presence. As the first tourbillon skeleton within the DEFY Skyline line, it reveals an entirely openworked interpretation of the El Primero movement, suspended within a radiant rose gold case whose facets capture and reshape the light.