Citizen JY8100-80L Sky Eco-Drive 45.4mm Super Titanium Blue Men's Watch

Citizen JY8100-80L: Eco-Drive solar power and radio reception

Overview

Citizen places the JY8100-80L in its Promaster Sky range. The movement is an Eco-Drive, powered by a solar cell placed under the dial. The time is read on a blue dial, where Arabic numerals and indices serve as markers. No manual time setting: the watch is radio-controlled. It measures 45.4 mm in diameter and comes in titanium (Super Titanium), case and bracelet. The Promaster Sky line is dedicated to aviation at Citizen.

Case

The JY8100-80L comes in a case of 45.4 mm in diameter by 14.3 mm thick, crafted in titanium (Super Titanium). The dial is read under a sapphire crystal, and it is set in a fixed bezel. With 200 m water resistance (20 ATM), the watch handles pool lengths and free diving, without claiming scuba diving.

Movement

In the U680-08A caliber, the solar cell takes the role of the battery: it recharges a capacitor and is not replaced. On the wrist, it gives the world time in many time zones and resists magnetic fields thanks to its anti-magnetic construction. Without light, the power reserve allows it to last about 3.5 years once the watch is charged. The dial does not stop at the time: it also displays the full date digitally. A power reserve indicator shows the charge status, and a low charge warning alerts if light becomes scarce.

Bracelet

The watch is worn on a titanium bracelet with a deployant clasp, with a lug width of 22 mm. The bracelet is 140 mm long and the watch weighs 119 g on the scale. The watch benefits from a 2-year warranty.

Supplied with: Storage box, presentation pad, user manual.