Citizen Nighthawk CA4377-53H 43mm – men's Eco-Drive chronograph in granite gray ion-plated stainless steel with aviation-inspired dial and red accents.
This pilot-style timepiece from the Nighthawk collection merges tactical functionality with monochromatic sophistication through charcoal gray ion plating and aviation-grade timing capability. The red chronograph hand paired with slide-rule bezel creates high-contrast legibility while Eco-Drive caliber B620 converts any light source into stored power, eliminating battery replacements and making this watch ideal for active professionals and aviation enthusiasts who value comprehensive timing functions anchored by 200-meter water resistance and screw-down crown security.
| Benefits |
| Eco-Drive solar charging removes the need for battery changes, storing reserve power from natural or artificial light exposure |
| 200-meter water resistance with screw-down crown supports swimming, showering, and snorkeling without concern |
| Gray ion plating provides durable finish that resists fading and scratching better than traditional coatings |
| Key features |
| 1/5 second chronograph measures elapsed time up to 60 minutes with precision timing for aviation and motorsport activities |
| Fixed tachymeter bezel allows speed calculation over known distances for performance tracking and navigation |
| Luminous hands and markers provide visibility in low-light conditions and nighttime cockpit environments |
| Who it's for |
| Men seeking a versatile pilot chronograph with military-inspired aesthetics and solar technology at accessible pricing |
| Aviation enthusiasts and active professionals who appreciate tactical design and value comprehensive timing functions |
| How to use |
| Chronograph pushers control start, stop, and reset functions for elapsed time measurement |
| Tachymeter scale calculates speed when distance is known; 12/24 hour time display supports international travel and military time preference |
| Specs |
| Movement |
Citizen Eco-Drive caliber B620, solar powered quartz |
| Case |
Stainless steel with granite gray ion plating, 43mm diameter, screw-down crown |
| Dial |
Charcoal gray with red chronograph seconds hand, luminous hands and markers, date display |
| Bezel |
Fixed with tachymeter markings |
| Bracelet |
Gray ion-plated stainless steel, 23.5mm lug width, fold-over clasp with push buttons |
| Crystal |
Mineral, impact and shatter resistant |
| Water resistance |
200 meters, 20 bar, 666 feet |
| Functions |
1/5 second chronograph measuring up to 60 minutes, 12/24 hour time, date, tachymeter |
| Weight |
170.1 grams |
| Model |
CA4377-53H |
| UPC |
13205121524 |
