Zenith, founded in Le Locle in 1865, is best known for creating the El Primero in 1969 — the world's first integrated automatic chronograph movement. The El Primero operates at 36,000 vibrations per hour, enabling 1/10th of a second precision, and has been used by Rolex in the Daytona from 1988-2000. When Zenith management ordered the El Primero tooling destroyed during the quartz crisis, watchmaker Charles Vermot secretly preserved it — saving one of horology's great calibres.
The El Primero remains Zenith's signature movement after 55+ years of continuous production. Modern iterations include the El Primero 3600 with 1/10th second display and the Defy 21 with 1/100th second chronograph. All Zenith movements are manufactured in-house with a focus on high-frequency precision.
Zenith watches offer outstanding mechanical substance at competitive prices. Availability is good through authorized dealers, and discounts of 15-25% are achievable. The Chronomaster Sport (Rolex Daytona's spiritual sibling) and Defy Skyline represent the best current values in the lineup.
Service intervals are every 4-6 years with costs of $500-$900 for El Primero chronographs. Zenith's service is handled through LVMH group infrastructure. The high-frequency El Primero movement requires specialized service but the manufacturer has decades of experience with the calibre.
Zenith watches depreciate 25-40% from retail. The Chronomaster and Defy lines hold value best. Zenith represents one of the best values in pre-owned chronographs — you get one of the most historically significant movements in watchmaking at very accessible secondary market prices.
Ranked by WVS Value Score — the models that best preserve your investment.
| # | Model | Market | Own/Yr | Score |
|---|---|---|---|---|
| 1 | Chronomaster 03.3200.3600/21.M3200 | $8,000 | $680/yr | 65 |
| 2 | Defy 95.9000.9004/78.M9000 | $6,500 | $568/yr | 65 |
Each collection has a distinct character — from tool watches to haute horlogerie. Click through for full model comparisons.
See how Zenith stacks up against other luxury watch brands.