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The Hamilton Khaki Navy Frogman Automatic H77845330 pairs a 46 mm black PVD-coated steel case with Hamilton-stated 300 m water resistance, an automatic H-10 movement and an 80-hour power reserve. Its dimensions make wrist fit a key consideration; its diver-oriented specifications make it a substantial option for buyers who want a large maritime-style watch.
What is the Hamilton Khaki Navy Frogman H77845330?
H77845330 is the reference for this black-dial, black PVD-coated stainless-steel version of the Khaki Navy Frogman Automatic. Hamilton identifies it as part of the current collection and describes the model as its “most technically capable maritime-ready watch.” That is the manufacturer’s positioning, not an independent performance assessment.
Hamilton lists an automatic H-10 calibre with a Nivachron balance spring. The brand describes it as “A three-hand automatic movement boasting a superior power reserve of 80 hours and featuring a Nivachron™ balance spring.”
How big is the Hamilton Khaki Navy Frogman 46mm?
Hamilton lists the case at 46 mm in diameter and 13.58 mm thick, with a 22 mm lug width. Those dimensions make this a large watch on paper, but they do not establish how it will fit a particular wrist. Hamilton’s retrieved specifications do not state a lug-to-lug measurement.
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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 300M: Withstands 30 bar (300 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- MADE FOR THE DEEP: Designed with a 41mm stainless steel case and a striking black dial, this watch is water-resistant up to 300m, making it perfect for underwater exploration. Sapphire crystal ensures excellent visibility in any marine environment.
- PREMIUM MATERIALS: Rubber 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.
Before buying, compare the diameter, thickness and lug width with a watch you already wear, or try the Frogman on in person. Diameter alone cannot predict how far the watch will extend across your wrist.
What are the Frogman’s movement and water-resistance specifications?
Hamilton specifies an automatic H-10 movement with an 80-hour power reserve, a Nivachron balance spring and a 30 bar (300 m) water-resistance rating. The watch also has a screw-down crown, sapphire crystal and anti-reflection treatment. These are the manufacturer’s stated specifications, not independent test results; the rating alone does not establish independent dive certification or suitability for a particular professional diving use.
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 300M: Withstands 30 bar (300 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- MADE FOR THE DEEP: Designed with a 46mm stainless steel case and a striking black dial, this watch is water-resistant up to 300m, making it perfect for underwater exploration. Sapphire crystal ensures excellent visibility in any marine environment.
- PREMIUM MATERIALS: Rubber 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.
What strap fits the Hamilton Frogman H77845330?
Hamilton lists a rubber strap, reference H6000001231, with a 20 mm buckle width. The watch has a 22 mm lug width. Those measurements describe the listed configuration; they do not prove that any third-party strap will fit. Confirm the strap’s width and end fit with the seller or Hamilton before ordering an alternative.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price and availability
Hamilton’s US product page displayed a price of $1,545 and the status “Available soon” on October 8, 2026. That is a US-specific snapshot, not a guarantee of current stock or pricing in another region. The page also lists a two-year international warranty. Check the product page for the latest local price and availability: Hamilton Khaki Navy Frogman Auto H77845330.
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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 1000M: Withstands 100 bar (1000 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- MADE FOR THE DEEP: Designed with a 46mm titanium case and a striking black dial, this watch is water-resistant up to 1000m, making it perfect for underwater exploration. Sapphire crystal ensures excellent visibility in any marine environment.
- PREMIUM MATERIALS: Rubber 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 300M: Withstands 30 bar (300 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- MADE FOR THE DEEP: Designed with a 41mm stainless steel case and a striking black dial, this watch is water-resistant up to 300m, making it perfect for underwater exploration. Sapphire crystal ensures excellent visibility in any marine environment.
- 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.
Rank #3
- 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 300M: Withstands 30 bar (300 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- MADE FOR THE DEEP: Designed with a 46mm stainless steel case and a striking black dial, this watch is water-resistant up to 300m, making it perfect for underwater exploration. Sapphire crystal ensures excellent visibility in any marine environment.
- PREMIUM MATERIALS: Rubber strap with H-shaped 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.
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.
