SEIKO (Seiko) Solar RADIO WAVE CONTROL Titanium 10m Water Resistance Model D3E4-EW I haven't used this for a long time, but I think it will work again if I charge it with solar power. I took it out after a while and exposed it to light, and the second hand started moving. However, as it is an old used item, I cannot offer any warranty, so please understand that it is non-refundable and non-returnable. Thank you for looking.