Radio-Controlled Eco-Drive Timekeeping
Powered by light and featuring atomic timekeeping, this watch supports radio-controlled accuracy without needing a battery replacement.
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Updated 4 months ago
Feature-rich Eco-Drive atomic pilot chronograph with world time and radio-controlled accuracy.

Powered by light and featuring atomic timekeeping, this watch supports radio-controlled accuracy without needing a battery replacement.
World time in 43 cities, UTC display, dual time, and a rotating slide rule bezel provide practical functions for travel and aviation use.
A stainless steel case and band, anti-reflective sapphire crystal, luminous hands and markers, and 200 m water resistance support everyday wear.
The Citizen Promaster Skyhawk A-T JY8078-52L is a men’s analogue-digital Eco-Drive atomic pilot chronograph with stainless steel construction, a 45.4 mm case, sapphire crystal, 200 m water resistance, world time, perpetual calendar, alarms, countdown timer, and pilot’s rotating slide rule bezel.
The review characterizes the watch as a durable, aviation-inspired timepiece that offers precise atomic timekeeping and useful features like world time and a slide rule bezel.
The reviewer highlights the watch as a great tool watch that balances utility, appearance, and price, while noting that its large size and complex dial may not appeal to all users.
The review concludes that the watch provides professional-grade pilot functionality and excellent value, citing its reliable solar-powered Eco-Drive movement and comprehensive feature set.
The reviewer describes the Promaster line as serious tool watches that benefit from Citizen's ability to incorporate modernizing adjustments.
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| Attribute | Specification | Notes |
|---|---|---|
| Band Material | Stainless steel | |
| Band Width | 22 mm | mm |
| Battery Life | 180 days | days |
| Case Diameter | 45.4 mm | mm |
| Case Material | Stainless steel | |
| Case Thickness | 14.4 mm | mm |
| Clasp Type | fold-over clasp with hidden push buttons | |
| Crystal Material | sapphire crystal (anti-reflective sapphire crystal) | |
| Display Type | Analogue-digital | |
| Features | Atomic timekeeping / radio-controlled accuracy, World time in 43 cities (atomic timekeeping by region), Chronograph (1/100-second), Perpetual calendar, Dual time (second time zone), Alarms (2), Countdown timer (99-minute), Digital backlight, UTC display, Power reserve indicator, Pilot's rotating slide rule bezel, Luminous hands and markers | |
| Gender Target | men | |
| Movement Type | Eco-Drive (solar) / atomic timekeeping (Caliber U680) | |
| Power Source | solar (Eco-Drive, powered by light; never needs a battery) | |
| Water Resistance | 200 m | m |

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