Hamilton Jazzmaster Open Heart Automatic Men’s Watch, 40mm

Product Overview

The Hamilton Jazzmaster Open Heart Automatic Men’s Watch combines Swiss engineering excellence with a bold, contemporary aesthetic. At its core lies the H-10-S automatic movement, a self-winding caliber developed in-house by Hamilton, offering an impressive 80-hour power reserve—enough to keep accurate time even after a full weekend off the wrist. The 40mm stainless steel case frames a smoky burgundy dial with a distinctive open heart cut-out, providing a mesmerizing glimpse into the watch’s mechanical heart. This design choice isn’t just for show; it celebrates the intricate craftsmanship of the movement, making timekeeping a dynamic visual experience. Protected by scratch-resistant sapphire crystal and built with a Nivachron balance spring for enhanced durability, this timepiece is engineered to perform reliably under everyday conditions. The matching stainless steel bracelet ensures a secure, comfortable fit, while the 50-meter water resistance adds practical resilience. As a Swiss Made watch, it carries the legacy of Hamilton’s long-standing tradition of precision and innovation, making it a refined choice for discerning wearers.

Key Features

• Open Heart Burgundy Dial: The smoky burgundy dial features a carefully designed cut-out that reveals the oscillating rotor and key components of the automatic movement. This open heart design adds depth and character, transforming the watch into a miniature showcase of mechanical artistry while maintaining a classic, elegant profile.
• H-10-S Automatic Movement: At the heart of this timepiece is Hamilton’s proprietary H-10-S caliber, a 3-hand automatic movement known for its reliability and extended power reserve. With 80 hours of stored energy, the watch continues running smoothly through short absences, minimizing the need for manual winding or resetting.
• Nivachron Balance Spring: The movement incorporates a Nivachron balance spring, a modern alloy developed to resist magnetic interference and temperature fluctuations. This advancement contributes to greater accuracy over time and enhances the watch’s resilience in daily environments where magnetic fields from electronics or appliances may be present.
• Sapphire Crystal: The front crystal is made of sapphire, one of the hardest transparent materials available, offering exceptional resistance to scratches and maintaining optical clarity even with regular wear in urban or professional settings.
• 50m Water Resistance: Rated for water resistance up to 50 meters, the watch can handle splashes, rain, and brief immersion—ideal for everyday use, handwashing, or light outdoor activities. It is not intended for swimming, showering, or water sports.
• Stainless Steel Case and Bracelet: The 40mm case and integrated stainless steel bracelet are crafted for both strength and comfort. The polished and brushed finishes create a refined look that transitions effortlessly from business meetings to evening events, offering a timeless appeal.
• Swiss Made Craftsmanship: Assembled and regulated in Switzerland, this watch adheres to strict Swiss standards for quality and precision. Every component is meticulously inspected, ensuring long-term reliability and performance that honors Hamilton’s heritage.

Technical Specifications

• Case Diameter: 40mm
• Case Material: Stainless Steel
• Dial Color: Burgundy with Open Heart Design
• Movement: H-10-S Automatic (3-Hand)
• Power Reserve: 80 Hours
• Balance Spring: Nivachron
• Crystal: Sapphire
• Water Resistance: 50 meters
• Strap: Stainless Steel Bracelet
• Origin: Swiss Made
• Model Number: H32675170
• ASIN: B0DG4XDZL8
• Package Dimensions: 5.56 x 5.53 x 4.69 inches
• Item Weight: 9.6 ounces
• Department: Men’s
• Date First Available: October 22, 2024
• Manufacturer: Hamilton Watch

Benefits & Use Cases

This watch is designed for men who appreciate the fusion of mechanical sophistication and everyday usability. The open heart dial appeals to enthusiasts who value the artistry of automatic movements, offering a window into the watch’s inner workings without compromising elegance. Its robust construction and 50m water resistance make it suitable for daily wear across a range of environments—from the office to weekend outings. The 80-hour power reserve ensures consistent performance, even if the watch isn’t worn for a couple of days, reducing the hassle of frequent adjustments. The stainless steel bracelet provides a secure, comfortable fit, while the sapphire crystal helps maintain a pristine appearance over time. As a Swiss Made timepiece, it also serves as a meaningful gift for collectors or anyone who values precision engineering and enduring design.

Important Notes

While the watch is water-resistant to 50 meters, it should not be worn during swimming, diving, or exposure to high-pressure water. Avoid prolonged contact with chemicals, extreme temperatures, or moisture to preserve its finish and functionality. The manufacturer’s warranty is available upon request through Hamilton customer service. For warranty registration and service, consult the official Hamilton website or contact an authorized retailer. The package includes the watch only; additional accessories or documentation may vary by region. Proper storage in a dry, safe location when not in use is recommended to maintain optimal condition.