Zenith Chronomaster Sport El Primero 3600 41mm

Ref. 03.3100.3600/21.M3100

The El Primero calibre has a particular place in watchmaking history: Zenith introduced it in 1969 as one of the first automatic chronograph movements, and its 36,000 vph frequency — twice the rate of most contemporaries — was the reason it could time in tenths of a second rather than fifths. The Chronomaster Sport is where that movement gets the treatment it warrants: a ceramic bezel graduated to tenths, a case designed around the integrated bracelet, and the three-register dial layout that has been the house signature since the original. The tri-colour subdials — grey, anthracite and blue against the matte black lacquer — are one of those details that read as a pattern rather than a spec at a glance, but reward a closer look every time the light changes. At 13.6mm the case is not thin, but it sits honestly for what it contains: a 311-part movement with a column-wheel, a hacking function and 60 hours of reserve, visible in full through the exhibition caseback.

Reference

03.3100.3600/21.M3100

Brand

Zenith

Case size

41mm

Case thickness

13.6mm

Case material

Stainless steel

Case shape

Round

Dial

Black

Crystal

Sapphire

Movement

Automatic

Calibre

El Primero 3600

Functions

Chronograph, Date, Small seconds

Water resistance

100m

Bracelet / strap

Stainless steel bracelet

Strap colour

Silver

Clasp

Buckle

Lume

Super-LumiNova

Retailer

Goldsmiths