F-Stop Photographer Unisex Analog Watch F-Stop Photographer Unisex Analog Watch A great photography-inspired watch. Measure time by aperture. It's almost F11, do you know where your children are? Features a 33mm diameter face, genuine leather band, and Japanese quartz movement. Battery included, and comes boxed in a beautiful tin display case. Protected by a 2 year Asurion warranty (see details below) Click on "The Unemployed Philosophers Guild" near the product title to see more great gifts. UPG truly has presents of mind.