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

Product Overview

The Hamilton Jazzmaster Open Heart Automatic is a refined men’s timepiece that blends traditional Swiss craftsmanship with modern design. Featuring a 40mm stainless steel case and an open-heart dial, this watch reveals the intricate mechanics of its automatic movement, offering a captivating view into the precision engineering at its core. Designed for discerning watch enthusiasts, it combines elegance with mechanical sophistication. The silver dial, accentuated by precision cutouts, provides a dynamic window into the self-winding movement beneath, making each glance at the time a moment of appreciation for horological artistry. The matching stainless steel strap ensures a cohesive and polished appearance, making this watch versatile enough for both formal occasions and everyday wear. As a Swiss-made automatic timepiece, it reflects Hamilton’s longstanding commitment to quality, reliability, and timeless design.

Key Features

• Open Heart Dial Design: Precision cutouts on the silver dial expose the inner workings of the automatic movement, adding visual depth and a dynamic character to the watch. This distinctive feature allows wearers to observe the rhythmic motion of the balance wheel and other components, celebrating the mechanical soul of the timepiece. It’s not just a watch—it’s a wearable piece of engineering art.
• Swiss-Made Automatic Movement: Powered by a reliable 3-hand automatic movement crafted in Switzerland, this watch operates without a battery. Instead, it harnesses kinetic energy from the wearer’s natural wrist movements to wind the mainspring, ensuring consistent and accurate timekeeping. This self-sustaining mechanism eliminates the need for regular battery replacements and appeals to those who value traditional mechanical watchmaking.
• 40mm Stainless Steel Case: The case is constructed from durable stainless steel, offering both strength and a refined finish. With a 40mm diameter, it strikes a balanced presence on the wrist—large enough to make a statement, yet comfortable and proportionate for most men. Its sleek profile transitions seamlessly from business meetings to casual outings.
• Sapphire Crystal: The watch face is protected by scratch-resistant sapphire crystal, one of the hardest transparent materials used in watchmaking. This premium glass resists everyday scuffs and maintains optical clarity over time, ensuring the dial remains pristine and legible even after years of wear.
• 50m Water Resistance: Rated for 50 meters (5 ATM) of water resistance, this watch can handle splashes, rain, and brief immersion—such as during handwashing or unexpected weather. However, it is not suitable for swimming, snorkeling, or diving. This level of protection makes it ideal for daily use in typical urban and professional environments.
• Stainless Steel Strap: The integrated stainless steel bracelet complements the case with a seamless, professional look. Designed for comfort and durability, it features a fold-over clasp that provides a secure and adjustable fit. The bracelet’s polished and brushed finishes add subtle texture, enhancing the watch’s overall aesthetic.

Technical Specifications

• Model Number: H32675150
• Department: Men’s
• Case Material: Stainless Steel
• Case Diameter: 40mm
• Dial Color: Silver
• Movement: Swiss Automatic, 3-Hand
• Crystal: Sapphire
• Water Resistance: 50 meters (5 ATM)
• Strap Material: Stainless Steel
• Manufacturer: Hamilton Watch
• ASIN: B09VJGKG1V
• Package Dimensions: 5.55 x 5.55 x 4.76 inches
• Item Weight: 1.46 pounds
• Date First Available: March 14, 2022

Benefits & Use Cases

The Hamilton Jazzmaster Open Heart Automatic is crafted for men who value both form and function in a timepiece. Its open-heart dial makes it a standout accessory, ideal for professionals who appreciate craftsmanship, collectors seeking mechanical authenticity, or anyone who enjoys wearing a watch with personality. The 40mm case size ensures a comfortable fit on most wrist sizes, making it suitable for extended daily wear. Whether you’re in the office, attending a dinner event, or enjoying a weekend outing, this watch complements a range of styles—from business suits to smart-casual attire.

The combination of stainless steel construction and sapphire crystal provides excellent resistance to scratches and impacts, supporting long-term durability. While not intended for water sports, its 50m water resistance offers peace of mind during everyday activities like washing hands or walking in the rain. The automatic movement requires no battery and is powered by natural motion, making it a practical and eco-conscious choice for modern wearers.

Important Notes

The manufacturer’s warranty is available and can be requested directly through Hamilton’s customer service. Prospective buyers should contact customer support to initiate a warranty claim or request additional documentation. This watch is not designed for high-impact water activities such as swimming, snorkeling, or diving. Regular maintenance is recommended to preserve the automatic movement’s performance and longevity. The package includes the watch only; additional accessories or documentation may vary by region. To maintain optimal condition, store the watch in a dry environment when not in use and avoid exposing it to extreme temperatures or magnetic fields.