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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchHamilton’s Jazzmaster Open Heart colour expansion adds graduated blue, black and brown dials, with a pale turquoise 36mm option also reported for 2026. The range is reported in 36mm, 40mm and 42mm case sizes, but the colour and strap or bracelet combinations vary. Hamilton’s live product pages confirm specific models; the broader colour-and-size lineup comes from T3’s March 6, 2026 launch report.
What are the new Hamilton Jazzmaster Open Heart dial colours?
T3’s March 6, 2026 coverage reports graduated dials in blue, black and brown. It also says a pale turquoise 36mm version was expected on May 21, 2026. That date has passed, so the launch report alone does not establish whether the turquoise model is currently available; check Hamilton’s catalogue for its present status.
The gradients give the dial a changing appearance across its surface. T3 describes the brown dial and strap as sharing a gradient treatment. The reported combinations are a launch snapshot, not a complete or independently verified current reference list.
How do the reported sizes and configurations compare?
T3 reports three case diameters. Its coverage describes a yellow-centred dial fading to a blue edge as exclusive to a 36mm model, while the new graduated black and brown options are offered in 40mm and 42mm versions.
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- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- CONTEMPORARY SOPHISTICATION: Featuring a 40mm stainless steel case and a sleek blue dial, this modern watch combines heritage with minimalist design. Complete with sapphire crystal , it’s the perfect expression of style and quality.
- PREMIUM MATERIALS: Leather strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
| Reported option | Case size | Configuration detail |
|---|---|---|
| Yellow centre fading to blue edge | 36mm | Reported as exclusive to this size by T3; full strap or bracelet reference details not stated in the report. |
| Graduated black | 40mm and 42mm | Reported in bracelet versions; full reference list not stated by T3. |
| Graduated brown | 40mm and 42mm | Reported in bracelet versions; T3 says the strap shares the dial’s gradient treatment. Full reference list not stated. |
| Pale turquoise | 36mm | Reported by T3 as expected May 21, 2026; current availability is not established by that dated report. |
These combinations should not be treated as an exhaustive current catalogue matrix. Hamilton’s product pages confirm individual examples, but they do not by themselves verify every launch combination reported by T3.
What Hamilton’s current product pages confirm
Blue 40mm H32675540
Hamilton’s US listing identifies the H32675540 as a 40mm Jazzmaster Open Heart Auto with a smoked blue dial. The manufacturer says the dial draws the eye inward to the movement cutouts. Its listed specifications are an automatic H-10 calibre, an 80-hour power reserve, a Nivachron balance spring, a stainless-steel case, sapphire crystal and 50m water resistance. Hamilton’s page displayed a US price of $1,245 and in-stock status when captured on October 7, 2026; check the current Hamilton US product listing for changes.
Rank #2
- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- CLEAR AND TIMELESS DESIGN: 42mm stainless steel case with a refined dial and an elegant stainless steel bracelet. Equipped with sapphire crystal and classic detailing, it blends vintage charm with modern functionality for any occasion.
- PREMIUM MATERIALS: Stainless steel bracelet with folding clasp offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
Blue aventurine 42mm H32705140
Hamilton’s US listing identifies the H32705140 as a 42mm model with a blue aventurine-inspired dial. The page does not establish that the dial is made from natural aventurine, so that material claim should not be inferred from the name. Listed specifications include the automatic H-10 calibre, an 80-hour power reserve, a Nivachron balance spring, a stainless-steel case, sapphire crystal and 50m water resistance. The page displayed a US price of $1,295 and in-stock status when captured on October 7, 2026; check the current Hamilton US product listing for changes.
What does Open Heart mean on this watch?
An opening in the dial reveals part of the moving mechanism beneath it. Hamilton’s February 12, 2026 announcement frames the design around visible mechanics and modern Jazzmaster styling; T3 describes it as a partially skeletal dial rather than a fully skeletonized watch. The opening is a visual feature, not evidence of improved timekeeping.
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- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- CONTEMPORARY SOPHISTICATION: Featuring a 42mm stainless steel case and a sleek black dial, this modern watch combines heritage with minimalist design. Complete with sapphire crystal , it’s the perfect expression of style and quality.
- PREMIUM MATERIALS: Leather strap with folding clasp offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
Hamilton’s official release describes the concept this way: “An open view of Swiss craftsmanship defines a refined expression of modern Jazzmaster design.” The February 12 announcement is available through Hamilton’s Press Lounge release.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What did the reported models cost?
T3’s UK launch coverage, published March 6, 2026, reported prices of £990 for the described leather-strap models and the 36mm bracelet model, and £1,065 for specified 40mm and 42mm black or brown bracelet models. These are UK launch prices for those configurations, not prices for every colour or market. Hamilton’s US pages showed the separate prices listed above when captured on October 7, 2026; prices and stock can change.
Quick Recap
Best Value
- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- CLEAR AND TIMELESS DESIGN: 42mm stainless steel case with a refined dial and an elegant leather strap. Equipped with sapphire crystal and classic detailing, it blends vintage charm with modern functionality for any occasion.
- PREMIUM MATERIALS: Leather strap with pin buckle offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
Rank #4
- AUTOMATIC MOVEMENT: Swiss H-10 movement with 80-hour reserve ensures consistent performance. Experience precision that matches both daily tasks and adventures, a testament to Swiss craftsmanship in automatic timekeeping.
- WATER RESISTANT TO 50M: Withstands 5 bar (50 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- CONTEMPORARY SOPHISTICATION: Featuring a 42mm stainless steel case and a sleek beige dial, this modern watch combines heritage with minimalist design. Complete with sapphire crystal , it’s the perfect expression of style and quality.
- PREMIUM MATERIALS: Leather strap with folding clasp offers day-long comfort. The clean lines and sophisticated design make it the perfect accessory for both casual wear and formal attire, merging functionality with fashion.
- RICH HERITAGE: Over a century of Hamilton's legacy in field watches, admired for precision. Originally designed for WWI soldiers, these timepieces combine rugged durability with history, showcasing Hamilton's commitment to quality and innovation.
How to narrow down the right configuration
- Compare dial colour and gradient in the exact reference listing, not just the collection name.
- Check case diameter and whether the model is on a strap or bracelet; the reported colour options do not map identically across sizes.
- Use the reference number to distinguish confirmed product listings from general launch coverage.
- Try the case on if possible. No wearer measurements or fit testing are established here, so diameter alone cannot determine how it will sit on your wrist.
- Confirm local price, stock and the turquoise model’s status with Hamilton or a retailer before ordering.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
