Product Overview
The Hamilton Jazzmaster Open Heart Automatic Men’s Watch blends Swiss precision with bold design, offering a distinctive view into the heart of mechanical timekeeping. This 42mm stainless steel timepiece features an open-heart dial that reveals the intricate motion of its Swiss-made automatic movement, creating a dynamic visual experience with every glance. Designed for men who appreciate both craftsmanship and character, it balances elegance with a touch of mechanical intrigue. The watch is built for everyday wear while maintaining a refined presence suitable for both casual and formal occasions. With its reliable performance and attention to detail, it’s a compelling choice for watch enthusiasts and style-conscious individuals alike.
Key Features
- Open Heart Dial Design: The signature open-heart aperture on the grey dial offers a captivating glimpse into the rotating balance wheel of the automatic movement, turning timekeeping into a visual experience. This design choice emphasizes the mechanical artistry behind the watch without exposing the entire mechanism, maintaining an air of mystery and sophistication.
- Swiss Made Automatic Movement: Powered by a precise 3-hand Swiss automatic movement, this watch delivers reliable timekeeping without the need for a battery. The self-winding mechanism harnesses the natural motion of the wearer’s wrist to keep the watch running, combining convenience with traditional horological craftsmanship.
- 42mm Stainless Steel Case: The robust yet refined stainless steel case provides durability and a substantial presence on the wrist. Its 42mm diameter strikes a balance between modern proportion and classic wearability, making it suitable for a wide range of wrist sizes.
- Sapphire Crystal: The watch face is protected by scratch-resistant sapphire crystal, ensuring long-term clarity and resilience against daily wear. This high-quality material maintains its luster and resists impacts far better than standard mineral or acrylic crystals.
- 50m Water Resistance: With a water resistance rating of 50 meters (5 ATM), the watch can withstand splashes, rain, and brief immersion in water. It’s suitable for everyday activities like handwashing or light swimming, but not for diving or prolonged submersion.
- Stainless Steel Strap: The integrated stainless steel bracelet offers a secure, comfortable fit with a polished finish that complements the case. Its durable construction ensures longevity, while the classic link design enhances the watch’s overall elegance.
Technical Specifications
- Model Number: H32705181
- Case Material: Stainless Steel
- Case Diameter: 42mm
- Dial Color: Grey
- Movement: Swiss Made Automatic, 3-Hand
- Crystal: Sapphire
- Water Resistance: 50 meters (5 ATM)
- Strap Material: Stainless Steel
- Department: Men’s
- Manufacturer: Hamilton Watch
- ASIN: B07SPGPLDH
- Package Dimensions: 7.55 x 6.15 x 4.9 inches
- Item Weight: 1.76 Pounds
- Date First Available: June 4, 2019
Benefits & Use Cases
The Hamilton Jazzmaster Open Heart is ideal for men who value both form and function in a timepiece. Its open-heart dial makes it a conversation starter, perfect for professionals who appreciate mechanical watches or collectors seeking a stylish daily wearer. The stainless steel construction and sapphire crystal ensure it holds up well in daily environments, from office settings to weekend outings. Thanks to its 50m water resistance, it’s suitable for everyday exposure to moisture, including rain and handwashing. The automatic movement eliminates the need for battery changes, offering hassle-free ownership for those who prefer self-sustaining mechanics. Whether paired with a suit or a casual shirt, the watch’s balanced design and grey dial provide versatility across styles and occasions.
Important Notes
This watch comes in original packaging with dimensions of 7.55 x 6.15 x 4.9 inches and weighs 1.76 pounds. A manufacturer’s warranty is available and can be requested directly through customer service. While the watch is water-resistant to 50 meters, it is not designed for swimming, snorkeling, or diving. Avoid pressing buttons or adjusting the crown while in water. Regular maintenance is recommended to preserve the movement and water resistance over time. The watch is part of Hamilton’s Jazzmaster collection, known for blending traditional watchmaking with contemporary design.

