Citizen Promaster Skyhawk A-T (Radio-Controlled Eco-Drive) Watches

The Citizen JY8148-08L and JY8149-05E are part of the Skyhawk A-T collection, a range of highly versatile pilot's watches that blend technology, precision, and style. Thanks to the U680 Eco-Drive caliber, they receive radio-controlled signals to maintain reliable atomic timekeeping without ever needing a battery change.

The JY8148-08L model is distinguished by its blue dial and blue leather strap, while the JY8149-05E features a black dial and black leather strap. Slightly different in appearance, they share the same advanced functions and basic technical specifications.

Common technical characteristics

• Movement: U680 Eco-Drive caliber (light-powered)

• Functions: radio reception (atomic time, automatic setting), chronograph, perpetual calendar, dual time zone, alarms, timer, UTC, analog + digital display

• Case material: stainless steel

• Diameter: ~ 46 mm for JY8149-05E according to sources (46 mm × 14 mm thick)

• Thickness: approximately 13 mm for JY8149-05E

• Bracelet style: leather (blue for JY8148-08L, black for JY8149-05E)

• Lug width: 22 mm

• Water resistance: 200 m / 20 ATM (suitable for swimming and light diving)

• Glass: sapphire with anti-reflective coating (premium aviation model)

• Additional functions: analog + digital display to provide multiple functions (UTC, chronograph, etc.)