Citizen Attesa x Radio-Controlled ft. 35th Anniversary aka Blue Universe Collection (Limited Edition of 1,900 Pieces) Men Formal Round 100m Water Resistant Watch AT8187-75E AT8187 AT-8187
Discover the Citizen Attesa AT8187-75E, a 1,900-piece limited edition celebrating Attesa 35th anniversary. Featuring a 42mm Super Titanium case with Duratect DLC Blue coating and a matching bracelet. Powered by the Eco-Drive Caliber H800 with global radio-controlled timekeeping, it offers a perpetual calendar, world time in 26 cities, and a chronograph. Completed with a scratch-resistant sapphire crystal and 100m water resistance.
Caliber Number / Movement
H800 (Eco-Drive aka solar powered)
Power Reserve / Accuracy
Approximately 6 months when fully charged (+/-15 seconds per month without reception)
Case / Band Material
Super Titanium (Duratect DLC) case with Super Titanium (Duratect DLC) band (three-fold clasp with push-button release, slide extender)
Water Resistance
100m / 10 bar
Case Size
Thickness: 10.8 mm
Diameter: 42.0 mm
Length: 48.7 mm
Lug width: 21.0 mm
Other Specifications
Citizen Attesa x Radio-Controlled ft. 35th Anniversary aka Blue Universe Collection (Limited Edition of 1,900 Pieces)
Made in Japan
Daylight saving time (automatic / manual switching)
World time function (26 cities)
Perpetual calendar (to 28 February 2100)
Chronograph up to 60 minutes in 1/20-second increment
Power reserve indicator
Overcharge prevention function
Insufficient charge warning function
Power saving function (hands stop to save power when left in the dark)
Automatic hand position alignment function
Day, date and 24-hour display
Regular timekeeping (analog display)
Global Radio-Controlled Function
Receiving time signal (automatic, on demand, auto recovery)
Signal stations: Japan (East/West) / USA / Germany / China
Automatic signal station selection function (for Japan standard signals only)
Confirming reception status (RX)
Indicating the result of last reception (OK/NO)
