LONGINES Tank Cal. L847.4, likely from around 1980. Large size with a lug width of 22mm and a case size of 26.8 x 36.8mm. It appears to be a model that trades for around USD 500-700 overseas. The strap and buckle are aftermarket, and the strap has a used feel as it was used for about six months. Wound about 12-14 times (about 8 turns?), it ran for about half a day. I used it for work (sales), and I didn't feel any noticeable delay or gain during that time, so it was practical. I haven't measured it precisely, so please refrain from purchasing if you are concerned. The crown moves smoothly without any sticking, and there are no other points of concern regarding its use, so I think you can use it without stress. It has not been overhauled. Condition: Scratches on the crystal, corrosion (rust) on the surface of the stainless steel back cover, and scratches on the case. Some dust. The dial is relatively clean. I would appreciate it if those who understand vintage items would consider purchasing. #HandWoundWatch #Antique #Longines #Rectangular #Tank #Square