Citizen Titanium Eco-Drive (J810-R013459) – Men’s Watch w/ Box
 
Light-powered, lightweight titanium daily watch with crisp, modern lines
Slim, durable, and fuss-free: this Citizen uses the Cal. J810 Eco-Drive movement, so it charges from light and keeps running for months even in a drawer. The titanium case/bracelet keeps weight down while staying tough and hypoallergenic. Grey dial with date at 3 o’clock and applied markers gives it a clean, versatile look.
 
Condition:
Very good overall and fully functional. Crystal is flawless. Bracelet shows normal wear; 1–2 links are missing (best for smaller wrists; extra links can be sourced if needed). Box included.
 
Includes:
Citizen Titanium Eco-Drive J810-R013459 watch
Original Citizen presentation box
Not included: papers/manual (PDF available from Citizen)
 
Features:
Eco-Drive solar quartz, Cal. J810 (set-and-forget; months of reserve once charged). 
Titanium case & bracelet for strength and comfort.
Case diameter ~41 mm (J810 Super Titanium models list 41–41.5 mm; a listing of this exact ref reports 40 mm). 
Date at 3 o’clock; luminous hands/markers.
Push-button deployant clasp; approx 23 mm lug/bracelet interface. 
 
Frequently Asked Questions:
Q: Do I ever need to change a battery?
A: Eco-Drive stores energy from light; under normal use, routine battery swaps aren’t required. 
Q: Will it fit a larger wrist?
A: It’s missing 1–2 links, so it suits smaller wrists as-is; additional links can be obtained.
Q: Water resistance?
A: Typical J810 daily models are 5–10 bar; treat this as a dress-casual piece unless you verify model-specific rating.