Damien C. 03/08/2025
| Reference Ocarat | #102721 |
| Reference | H77455331 |
| Brand | Hamilton |
| Product Type | Watch |
| Gender | Men |
| Color | Black Green |
| Material | Steel |
| Material Quality | Stainless Steel |
| Finish | Matte (Brushed / Satin) Polished / Shiny |
| Warranty | 2 Years |
| Thickness (in mm) | 14,95 |
| Diameter (in mm) | 41,00 |
| Manufacturing | Switzerland |
| Warranty Type | International |
| Labels and Certificates | Authorized Retailer |
| Case Shape | Round |
| Bezel | Rotating With luminescent marker(s) |
| Watch Case Back | Screwed caseback |
| Glass Quality | Sapphire Crystal |
| Glass Treatment | Anti-Reflective Coating |
| Buttons | 1 Crown |
| Screw Crown | Yes |
| Water Resistance (in ATM) | 30 |
| Movements | Automatic (rotor) |
| Movement Type | Swiss Movement |
| Movement Brand | Hamilton |
| Calibers (Movements) | H-10 |
| Movement Base (Origin) | ETA C07.611 |
| Calendar and Time | Hours Minutes Seconds |
| Power Reserve (Maximum Duration) | 80 hours |
| Display Type | Analog (hands) |
| Display Specifications | Arabic Numerals Indices and railroad track Luminescent hands and indexes |
| Bracelet Material | Rubber |
| Strap Color | Green |
| Watch Clasp | Tang Buckle |
| Lug Width (in mm) | 20,00 |
| Buckle Width (in mm) | 18,00 |
| Activities | Swimming / Diving |
| Collection | Hamilton Khaki Navy |
Playing with colors, styles, and designs, iconic Swiss brand Hamilton has built its international reputation on bold, high-quality timepieces that have earned it a prestigious place in the fine watchmaking market. Since its founding, from 1982 to the present day, the brand has consistently showcased the full depth of its expertise through daring, elegant models with unmatched performance. Today, Hamilton introduces its new Khaki Navy Frogman Watch H77455331. Built for fearless men who want to express their own style and strong character, it is the refined, ultra-modern addition that will elevate your look while standing by you through every adventure, with unwavering reliability. Combining precision, charm, and endurance, it features a round case in stainless steel with a brushed and polished finish. Measuring 41 mm in diameter and 14.95 mm thick, its compact profile suits virtually any wrist size. A screwed-down, protected crown sits at 3 o'clock for easy time setting and manual winding. The dial is shielded from everyday shocks and scratches by a sapphire crystal with an anti-reflective coating for flawless legibility from every angle. It is framed by a rotating black bezel enhanced with minute graduations and a luminescent triangle for elapsed-time tracking. On the caseback, a screwed-down case back guarantees water resistance to 30 ATM.
The case houses a stunning round dial that deepens the watch's timeless appeal with a captivating blend of restraint and modernity. Its black background is offset by silver and orange time markers, creating a striking effect on the wrist while ensuring crisp, precise readability. Luminescent, a gray hour hand, an orange minute hand, and a slender gray seconds hand with an orange arrow tip sweep with precision to display hours, minutes, and seconds - even in low-light conditions. A minute railroad track graduated with white lines runs along the perimeter, separated by luminescent indices. These hour markers take a rectangular shape, except at 12 o'clock, which is marked by an Arabic numeral. Finally, the brand places its name and logo below 12 as a signature, and indicates the movement type, water resistance, and the "Swiss Made" label at 6 o'clock.
A Swiss automatic movement powers this watch, ensuring flawless timekeeping and smooth hand sweep. Based on the ETA C07.601, it is the proprietary H-10 caliber that - renowned for its exceptional quality and performance - delivers an impressive 80-hour power reserve. Equipped with a Nivachron® hairspring, it features 25 jewels and beats at 21,600 vph. Hours, minutes, and seconds are displayed with precision and reliability in any condition.
This timepiece features a rubber strap that adds a captivating sporty, modern edge to the overall look. In khaki green with a wave-textured design, it gracefully follows the curves of your wrist for comfortable, all-day wear. Easy to style, it is the refined finishing touch that elevates any outfit - from ocean explorations to city adventures. With a 20 mm lug width, it is secured by an 18 mm stainless steel pin buckle for effortless, flexible adjustment.
With a water resistance of 30 atmospheres, equivalent to 300 meters, our team of watch specialists can confidently send you off on your next aquatic adventure. Fully waterproof, this model is ready for anything: shower, bath, swimming, freediving, or scuba diving - it handles it all. To preserve the timepiece's lasting water resistance, our watchmakers recommend keeping the pushers and crown clear of operation while diving.




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Damien C. 03/08/2025
Khaki Navy Frogman Watch H77455331
(Ref. 102721)