Hamilton Jazzmaster Open Heart Automatic Men’s Watch, 42mm

Product Overview

The Hamilton Jazzmaster Open Heart Automatic Men’s Watch is a refined timepiece that blends classic Swiss craftsmanship with modern design. Built for the discerning man who values both form and function, this 42mm watch features an open-heart dial that offers a captivating glimpse into the precision of its Swiss-made automatic movement. The silver dial, accented with blue indexes and hands, delivers a clean yet dynamic aesthetic suitable for both business and casual occasions. Paired with a genuine cow leather strap in matching blue, it strikes a balance between elegance and individuality. This is a watch designed for those who appreciate mechanical artistry and timeless style.

Key Features

• Swiss-Made Automatic Movement – Powered by a reliable 3-hand automatic caliber, this movement is entirely mechanical, requiring no battery. It harnesses energy from the natural motion of the wearer’s wrist, ensuring consistent performance and a connection to traditional watchmaking excellence. The movement’s self-winding mechanism eliminates the need for manual winding under normal use, making it both convenient and reliable for daily wear.
• Open Heart Dial Design – The signature cut-out on the silver dial reveals the intricate workings of the movement beneath, offering a mesmerizing view of the oscillating balance wheel in motion. This feature adds a layer of technical sophistication and visual intrigue, allowing the wearer to observe the heartbeat of the watch in real time. The precise cut-out is carefully engineered to showcase the movement without compromising structural integrity or legibility.
• Sapphire Crystal – The watch face is protected by scratch-resistant sapphire crystal, one of the hardest transparent materials available. This ensures long-term clarity and durability, maintaining the watch’s pristine appearance even with daily wear. Sapphire is second only to diamond in hardness, making it highly resistant to everyday scratches from keys, desks, or other common surfaces.
• 42mm Stainless Steel Case – Crafted from high-grade stainless steel, the case provides a robust yet refined foundation. Its 42mm diameter offers a substantial presence on the wrist without being overly bulky, making it ideal for medium to large wrist sizes. The case is polished to a smooth finish, enhancing its sleek profile and ensuring it complements both formal and casual attire.
• 50m Water Resistance – With a water resistance rating of 50 meters (5 ATM), this watch can withstand splashes, rain, and brief immersion in water. It is suitable for everyday activities like handwashing and light swimming but not recommended for diving or high-impact water sports. This level of protection ensures peace of mind during daily routines without compromising the watch’s mechanical integrity.
• Genuine Cow Leather Strap – The blue leather strap is made from real cowhide, offering a soft, comfortable fit that develops a unique patina over time. The color coordinates seamlessly with the blue hands and indexes, enhancing the watch’s cohesive design. The strap is designed for durability and comfort, with a secure buckle closure that ensures a snug and adjustable fit.

Technical Specifications

• Model Number: H32705651
• Case Material: Stainless Steel
• Case Diameter: 42mm
• Dial Color: Silver with Blue Accents
• Movement: Swiss-Made Automatic, 3-Hand
• Crystal: Sapphire
• Water Resistance: 50 meters (5 ATM)
• Strap Material: Cow Leather
• Strap Color: Blue
• Department: Men’s
• Manufacturer: Hamilton Watch
• ASIN: B08V8STQLS
• Package Dimensions: 8.39 x 7.99 x 4.88 inches
• Item Weight: 6.46 ounces
• Date First Available: July 28, 2021
• Discontinued by Manufacturer: No

Benefits & Use Cases

This watch is ideal for professionals seeking a sophisticated accessory that transitions effortlessly from office to evening events. The open-heart dial appeals to watch enthusiasts who appreciate mechanical complexity and visible craftsmanship. Its 50m water resistance makes it suitable for everyday wear, including exposure to rain or handwashing, though it should not be worn while showering or swimming extensively. The leather strap ensures comfort during prolonged wear and pairs well with both formal attire and smart-casual outfits. As a Swiss-made timepiece from a respected heritage brand, it also serves as a meaningful gift for milestones such as graduations, promotions, or anniversaries.

Important Notes

• The manufacturer’s warranty is available and can be requested directly through customer service.
• While the watch is not discontinued, availability may vary by retailer.
• Care should be taken to avoid prolonged exposure to water, chemicals, or extreme temperatures to preserve the leather strap and movement integrity.
• Regular servicing by a qualified watch technician is recommended to maintain optimal performance of the automatic movement.