Introduction
When it comes to the pinnacle of modern mechanical chronographs, few watches command more respect than the Patek Philippe 5370P Split-Seconds Chronograph. Introduced in 2015, the 5370P combines cutting-edge movement design with centuries-old artistry—namely, an immaculate black Grand Feu enamel dial and a platinum case.
This review explores why the 5370P isn’t just a watch—it’s a testament to Patek Philippe’s mastery of both engineering and aesthetics in high horology.
1. What Is a Split-Seconds Chronograph?
Also known as a rattrapante, a split-seconds chronograph allows the user to:
- Time two separate events that start simultaneously
- Freeze one hand while the other continues
- Re-synchronize the hands at will
This complication is incredibly difficult to manufacture and regulate, placing the 5370P among the most elite timepieces in the world.
2. Case and Material
- Diameter: 41mm
- Thickness: 13.56mm
- Material: 950 Platinum
- Water Resistance: 30 meters
Crafted in platinum, the case features elegant concave lugs, a domed bezel, and a discreet diamond between the lugs at 6 o’clock (a Patek signature for platinum cases). The case is highly polished, reflecting the gravitas of this reference.
3. Dial: Grand Feu Enamel Masterpiece
- Black enamel (Grand Feu) dial fired at over 800°C
- Breguet-style white gold numerals
- Luminous leaf hands
- Two subdials for running seconds and 30-minute counter
The dial is minimalistic yet rich, shimmering with depth under different lighting. The hand-applied enamel takes days to perfect and is impervious to fading or aging.
4. Strap and Clasp
- Shiny black hand-stitched alligator leather strap
- Platinum fold-over clasp engraved with the Calatrava cross
This understated strap completes the monochrome elegance of the 5370P and secures it with gravitas.
5. Movement: Caliber CHR 29-535 PS
- Manual-winding split-seconds chronograph
- Column-wheel with horizontal clutch
- Geneva Seal certification
- Power reserve: 55–65 hours
- 312 components, 34 jewels
This is Patek Philippe’s first in-house split-seconds chronograph, and it’s a technical marvel. Viewed through the sapphire caseback, the level of finishing—black-polished steel levers, Geneva striping, anglage—is breathtaking.
6. On the Wrist: Serious Sophistication
Despite its complexity, the 5370P wears gracefully. The platinum adds weight and presence, while the black enamel dial keeps it subtle and ultra-refined.
It’s not an everyday watch—it’s a collector’s trophy that balances mechanical depth with sleek restraint.
7. Market Position and Price
- Retail Price: ~$274,410 USD
- Secondary Market: ~$350,000–$400,000 depending on set and condition
The 5370P is one of the most coveted contemporary Patek pieces, not only for its technical mastery but also for its restrained, timeless aesthetic. It’s rarely seen in the wild.
8. Pros and Cons
Pros:
- In-house split-seconds chronograph movement
- Black Grand Feu enamel dial is visually unmatched
- World-class finishing and platinum craftsmanship
Cons:
- Extremely high price point
- Not designed for casual or rugged use
- Manual-wind may not appeal to everyone
Conclusion: A Monument to Mechanical Watchmaking
The Patek Philippe 5370P represents everything that defines haute horlogerie: complexity, rarity, elegance, and tradition. It’s not just a watch—it’s a mechanical sculpture for the wrist.
For the seasoned collector, few watches compare. With a movement worthy of a museum, a dial crafted by fire, and a design that transcends time, the 5370P is the grail chronograph of the modern era.