Citizen Promaster Navihawk AT8304-57A – 41 mm Grey Dial Atomic Eco-Drive

Product Description:
The Citizen AT8304-57A is a feature-rich pilot's chronograph built for precision and rugged performance. With Eco-Drive light-powered movement (Caliber H800), it never requires a battery change. The watch sports a 41 mm grey-ion plated stainless steel case and matching triple-link bracelet. It offers atomic timekeeping with multi-region signal reception, perpetual calendar, world time across 26 cities, 1/20-second chronograph, 12/24-hour formats, and a power reserve indicator. Protected by anti-reflective sapphire crystal and water resistant to 200 meters, it’s designed for both aviation use and daily wear.

Key Features:

• Movement: Eco-Drive Caliber H800 — solar/light powered; atomic/radio controlled time sync

Case & Bracelet Material: Grey ion-plated stainless steel case and bracelet; 41 mm diameter

Crystal: Sapphire crystal with anti-reflective coating.

Dial & Display: Grey dial; luminous hands and markers; slide-rule bezel (aeronautical rule); date window at 3 o’clock.

Functions: Atomic Timekeeping (multi-region signal reception), perpetual calendar, world time (26 cities), 1/20-second chronograph, 12/24-hour mode, power reserve indicator

Water Resistance: 200 m (20 ATM) — suitable for swimming, snorkeling, but not diving