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1Clear out junk files and repair common Windows errors2Fix the driver behind crashes, sound loss and screen glitches3Repair Windows errors before they cause bigger problemsHamilton’s verified 39 mm Khaki Aviation Pilot Auto range includes three configurations: two black- or blue-dial watches on steel bracelets and a black-dial version on a dark-brown calf-leather strap. All three share the H-10 automatic movement and the same headline case specifications. Hamilton’s product pages currently show differing availability statuses by reference and region.
Which 39 mm references are confirmed?
Hamilton’s official product pages identify these three 39 mm configurations. The differences established by those pages are the dial color, strap or bracelet, and—in the blue-dial model—the explicitly listed day-date window.
| Reference | Configuration | Distinctive details listed by Hamilton | Availability status shown |
|---|---|---|---|
| H76305130 | Black dial; brushed and polished stainless-steel bracelet | Hamilton lists the shared H-10 movement and case specifications. Its page does not establish a day-date window. | “Past collection” on Hamilton’s international page. |
| H76305140 | Blue dial; stainless-steel bracelet | Day-date window and enlarged dial numerals. | “Past collection” on Hamilton’s international page. |
| H76305530 | Black dial; dark-brown calf-leather strap | Hamilton lists the shared H-10 movement and case specifications. | “Not available online” on Hamilton’s US page. |
These statuses are not a guarantee of local stock or a universal statement about whether a watch can be found through retailers. Check Hamilton’s page for your region or contact a local retailer for current availability. No current price is established here.
What specifications do the three watches share?
Hamilton lists the same headline specifications for all three 39 mm references:
The Tool Desk
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- AUTOMATIC MOVEMENT: Swiss H-40 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 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- READY TO TAKE FLIGHT: A robust 42mm stainless steel case and a bold black dial deliver reliability and precision. With sapphire crystal for clear visibility, this watch is tailored to meet the demands of professional pilots and aviation enthusiasts.
- 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.
- Case: 39 mm diameter, 11.6 mm thick, with a 20 mm lug width.
- Movement: H-10 automatic, with an 80-hour power reserve.
- Crystal: Sapphire.
- Water resistance: 10 bar (100 m).
- Other listed features: Nivachron balance spring and Super-LumiNova.
These are Hamilton’s published product specifications on undated pages accessed in 2026, not independent test results. The blue H76305140 page specifically lists a day-date window; the available details for the other two references do not establish that feature, so it should not be assumed from the shared specifications.
How do the editions differ in practice?
Choose by dial and strap
The clearest decision is aesthetic and practical: H76305130 pairs a black dial with a steel bracelet, H76305140 uses a blue dial and steel bracelet, and H76305530 combines a black dial with a dark-brown calf-leather strap. The bracelet and strap are the confirmed configuration differences; the cited specifications do not establish a difference in the movement or main case dimensions.
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 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- READY TO TAKE FLIGHT: A robust 38mm stainless steel case and a bold black dial deliver reliability and precision. With sapphire crystal for clear visibility, this watch is tailored to meet the demands of professional pilots and aviation enthusiasts.
- 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.
Consider the 36 mm model separately
Hamilton also lists the blue-dial H76215140 at 36 mm. It has an H-10 automatic movement, an 80-hour reserve, 11.15 mm thickness, and an 18 mm lug width, and its international page labels it “Past collection.” It is a documented smaller-size alternative, but it is a separate reference rather than another 39 mm configuration. These dimensions alone do not establish how either size will fit a particular wrist.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What did Hamilton announce in 2024?
Hamilton’s January 15, 2024 press release, “Adventure Meets Accuracy in the New Khaki Aviation Pilot Collection from Hamilton”, says the broader Khaki Aviation Pilot collection launched with seven new references. The release’s accessible text does not itemize those references or provide a specific launch date for the 39 mm watches. The seven-reference count therefore applies to the broader collection—not to seven confirmed 39 mm editions.
Rank #3
- AUTOMATIC MOVEMENT: Swiss H-30 movement with 80-hour power reserve and day-date functionality for practical, everyday use. Precision engineering meets reliability for seamless timekeeping.
- WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- READY TO TAKE FLIGHT: A robust 45mm stainless steel case and a bold black dial deliver reliability and precision. With sapphire crystal for clear visibility, this watch is tailored to meet the demands of professional pilots and aviation enthusiasts.
- 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.
Hamilton’s individual product pages are the basis for the three verified configurations: H76305130, H76305140, and H76305530.
Quick Recap
Best Value
- AUTOMATIC MOVEMENT: Swiss H-40 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 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- READY TO TAKE FLIGHT: A robust 42mm stainless steel case and a bold black dial deliver reliability and precision. With sapphire crystal for clear visibility, this watch is tailored to meet the demands of professional pilots and aviation enthusiasts.
- 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
- MANUAL WINDING: Designed for precision, this hand-wound watch is powered by the exclusive H-50 movement, offering an extended 80-hour power reserve for reliable performance.
- WATER RESISTANT TO 100M: Withstands 10 bar (100 meters), ideal for swimming and outdoor pursuits. Perfect for those who demand resilient accessories that accompany them confidently on their explorative journeys.
- READY TO TAKE FLIGHT: A robust 36mm x 33mm stainless steel case and a black dial deliver reliability and precision. With mineral crystal for clear visibility, this watch is tailored to meet the demands of professional pilots and aviation enthusiasts.
- PREMIUM MATERIALS: Textile 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.
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.
