Product Overview
The Hamilton Khaki Navy Frogman Automatic is a robust, precision-engineered men’s watch built for those who demand performance both underwater and on land. With its 41mm stainless steel case and Swiss-made automatic movement, this timepiece delivers reliable, battery-free operation through self-winding mechanics. Inspired by military diving heritage, the Frogman combines rugged functionality with a bold aesthetic, making it ideal for divers, sailors, and outdoor enthusiasts. The black dial features Super-LumiNova® luminescent material on the hands and markers, ensuring clear visibility in low-light or dark underwater conditions. Paired with a distinctive green waved rubber strap that mimics the movement of ocean waves, the watch offers both visual appeal and practical comfort. Whether you’re exploring coral reefs, navigating open waters, or simply making a statement in daily wear, the Khaki Navy Frogman performs with confidence and style.
Key Features
- Swiss-Made Automatic Movement – This watch is powered by a self-winding mechanical movement crafted in Switzerland, eliminating the need for a battery. The 3-hand analog display provides accurate, easy-to-read timekeeping, appealing to enthusiasts who value traditional watchmaking craftsmanship.
- 300m Water Resistance (30 Bar) – Designed for serious water use, this watch is suitable for recreational scuba diving, snorkeling, and other water sports. The screw-down crown, shielded by a bridge-shaped guard, enhances water resistance by creating a secure seal against pressure and moisture.
- Sapphire Crystal – The scratch-resistant sapphire crystal protects the dial from everyday wear, impacts, and abrasions, preserving clarity and legibility over time.
- Super-LumiNova® Luminous Markers – Applied to the hour markers and hands, this advanced luminescent coating ensures excellent visibility in dark environments, such as deep water or nighttime settings.
- 41mm Stainless Steel Case – The case strikes a balance between presence and wearability, offering a substantial yet comfortable fit for a wide range of wrist sizes. Its polished and brushed finish adds refined detail to the rugged design.
- Green Waved Rubber Strap – The textured green rubber strap is inspired by ocean movement, providing flexibility, comfort, and a secure fit during active use. It resists degradation from saltwater, UV exposure, and prolonged wear, making it ideal for marine environments.
Technical Specifications
- Model Number: H77455331
- Case Diameter: 41mm
- Case Material: Stainless Steel
- Case Finish: Polished and Brushed
- Dial Color: Black
- Strap Material: Rubber
- Strap Color: Green (waved texture)
- Crystal: Scratch-Resistant Sapphire
- Movement: Swiss Automatic (Self-Winding)
- Water Resistance: 300 meters (30 bar)
- Crown: Screw-down with bridge guard
- Luminous Elements: Super-LumiNova® on hands and markers
- Department: Men’s
- Manufacturer: Hamilton Watch
- ASIN: B0CGLXKWQD
- Package Dimensions: 5.55 x 5.47 x 4.76 inches
- Item Weight: 1.5 Pounds
- Date First Available: August 31, 2023
Benefits & Use Cases
The Hamilton Khaki Navy Frogman Automatic is engineered for real-world durability and versatility. Its 300-meter water resistance rating makes it a dependable choice for recreational divers and water sports participants, while the screw-down crown and reinforced construction ensure integrity under pressure. The sapphire crystal and stainless steel case provide long-term resilience against scratches, impacts, and corrosion, ideal for harsh environments. Watch enthusiasts will appreciate the Swiss automatic movement, which combines traditional horological craftsmanship with modern reliability. The green rubber strap not only resists saltwater and sun damage but also offers a comfortable, secure fit during extended wear—whether you’re diving, sailing, or exploring coastal terrain. Beyond its technical strengths, the watch transitions seamlessly from aquatic adventures to everyday wear, serving as a stylish accessory for casual or professional settings. Its bold design, functional details, and heritage-inspired build make it a standout choice for men who value both performance and presence on the wrist.
Important Notes
This watch is designed for high water resistance but is not intended for saturation diving or extreme-pressure activities beyond its 300-meter rating. Frequent divers should perform regular maintenance and pressure testing to maintain water resistance over time. The manufacturer’s warranty is available and can be requested directly through customer service. Always ensure the crown is fully screwed down before any water exposure to preserve the watch’s integrity. The product arrives in standard packaging measuring 5.55 x 5.47 x 4.76 inches and weighs 1.5 pounds. As of the latest data, customer feedback reflects a 5.0 out of 5-star rating based on 2 verified purchases.



