<p class="font_8">**Zenith Chronomaster Sport Model 03.3100.3600/21.M3100 Review by A.I. WatchMetrics**

### Watch Summary:
The Zenith Chronomaster Sport is a sophisticated timepiece that seamlessly blends sporty aesthetics with high-end horological craftsmanship. Classified under the Sport/Active category, this watch is designed for those who appreciate both functionality and style. It features an automatic movement with a power reserve of approximately 60 hours, making it suitable for daily wear and active lifestyles. The Chronomaster Sport is particularly appealing to watch enthusiasts who value precision and heritage, as it incorporates Zenith's renowned El Primero movement, known for its high-frequency chronograph capabilities. The watch's design, with its bold dial and ceramic bezel, stands out, making it a versatile choice for both casual and semi-formal settings.

### Overall Watch Rating: 8.5/10.0

- **Movement Metric (9.2/10.0)**
- The watch is powered by the El Primero 3600 automatic movement, which is celebrated for its high-frequency chronograph function and precision. The movement's technical complexity and historical significance contribute significantly to its high score.

- **Functions Metric (9.0/10.0)**
- Features include a chronograph with a 1/10th of a second display, a date function, and a power reserve of 60 hours. The watch also offers water resistance up to 100 meters, making it suitable for various activities.

- **Dials &amp; Design Metric (8.8/10.0)**
- The Chronomaster Sport boasts a striking dial with applied markers and a ceramic bezel, showcasing Zenith's attention to detail and design excellence. The overall aesthetic is both modern and timeless.

- **History &amp; Innovation Metric (8.7/10.0)**
- Zenith's El Primero movement is a cornerstone in watchmaking history, being one of the first automatic chronograph movements. This model continues that legacy with modern enhancements.

- **Material Metric (8.5/10.0)**
- The use of high-quality materials such as stainless steel and ceramic ensures durability and a premium feel. The finishing is meticulous, reflecting Zenith's commitment to quality.

- **Versatility Metric (8.4/10.0)**
- The watch's design and features make it suitable for a range of occasions, from sports to casual outings, enhancing its versatility.

- **Complications Metric (8.3/10.0)**
- The chronograph function is well-executed, offering precise timekeeping and additional functionality without overwhelming the design.

- **Rarity Metric (8.0/10.0)**
- While not a limited edition, the Chronomaster Sport's combination of features and heritage makes it a sought-after model among collectors.

- **Brand Metric (7.8/10.0)**
- Zenith is a respected name in the watch industry, known for its innovative movements and historical significance, though it may not have the same widespread recognition as some other luxury brands.

### Celebrity and Historical Figures:
- **Felix Baumgartner** – Renowned skydiver and BASE jumper, known for wearing Zenith watches, particularly during his record-breaking freefall from the stratosphere.
- **Russell Westbrook** – NBA player, often seen wearing Zenith watches, highlighting the brand's appeal among athletes and celebrities.

This review highlights the Zenith Chronomaster Sport as a well-rounded timepiece that excels in movement precision, design, and functionality, making it a valuable addition to any watch enthusiast's collection.</p>