Jazzmaster Open Heart Automatic 42 mm Watch H32705560

The Watch

For over 130 years, Hamilton has blended tradition and innovation to craft exceptional timepieces. Always pushing the boundaries of watchmaking, the brand is celebrated for its ties to aviation, the military, and cinema. Hamilton watches stand for boldness, precision, and daring design - making them the go-to choice for those who demand elegance and performance in every moment. Today, the brand presents the Jazzmaster Open Heart Auto 42 mm H32705560 Watch. A compelling and resilient model destined for men's wrists every day. It features a case measuring 42 mm in diameter and 11.45 mm thick, crafted from brushed and polished stainless steel. Its captivating round shape is topped by a flat sapphire crystal that shields the dial from potential shocks, complete with an anti-reflective coating for optimal legibility. At 3 o'clock, a gray crown bearing the raised H logo is positioned for hand-setting, and its knurled finish ensures a secure grip. The watch is secured by an engraved, screwed caseback delivering water resistance to 5 ATM. It also features a transparent display window allowing you to admire the movement within.

The Dial

This dial features a refined design that gives this watch a striking look. It showcases a smoked green background with a skeleton finish offering a partial view of the movement's inner workings. Around the edge, a minute track is paired with lance-shaped, gray index markers indicating the hours. At the center, three silver hands ensure reliable timekeeping. The hour and minute hands are dauphine-style and coated with white luminescent treatment - just like the hour markers - for optimal legibility when needed. The slim seconds hand tracks the passing seconds. At 6 o'clock, the "Swiss Made" label appears. Finally, the brand logo and name are displayed at 9 o'clock, along with the movement type as a signature.

The Movement

This timepiece is powered by a automatic movement of Swiss origin. It is specifically the H-10 caliber based on the ETA C07.611 and fitted with a Nivachron™ hairspring for excellent resistance to magnetic fields. Built in-house, this mechanism beats at a frequency of 21,600 vibrations per hour, delivering remarkable precision. It is robust and features 25 jewels that reduce friction. It gives this watch a power reserve of 80 hours.

The Strap

This timepiece comes with two straps to choose from - both 22 mm wide - selectable via the dropdown menu. Each features a quick-release system and a clasp with a width of 20 mm.

The first strap is crafted in calfskin leather, a material that is both durable and supple, ensuring exceptional comfort on the wrist. It will elevate your look every day with its brown hue and tone-on-tone stitching along the edges. With its elegant look, it will enhance your style on any occasion and pair effortlessly with any outfit. Its pin buckle makes fastening a breeze.

The second strap is crafted in stainless steel, giving it lasting durability. It features brushed and polished links that will contour beautifully to your wrist. Its gray tone pairs effortlessly with any outfit for a polished, charming look. This strap is fitted with a butterfly deployment clasp for easy operation.

Water Resistance

This watch offers a water resistance of 5 atmospheres, or 50 m. This model is designed to be strikingly beautiful and turn heads in any social setting. That said, its refined look in no way compromises its ability to withstand the elements. You can wear it in the shower, though the Ocarat team recommends setting it gently on the edge of the sink to preserve its shine and integrity over time. For swimming and scuba diving, we strongly advise against wearing this watch to avoid damage and costly repairs.