I purchased this on Yahoo! Shopping. I am selling it because I don't seem to have an opportunity to use it. The plastic wrap has been opened. The following is the description from that time: ↓ This is a replacement buckle (part) for metal watch bands. It is a buckle to be replaced when the spring of the push button deteriorates or when opening and closing malfunctions. [Specifications] ■ Domestic genuine product ■ Material: Stainless steel ■ Color: Silver ■ Accessories: None ※ Pins, C-rings, and spring bars for attachment are not included. Please reuse the parts you are currently using. [Compatible Models] Brightz etc. ・SDGC001・SDGC003・SDGC007・SDGC009・SDGC013・SDGC017 ・SDGC019・SAGH015・SAGH017・SAGZ045・SAGZ047・SAGZ049 ・SAGZ051・SAGZ053・SAGZ055 ・SAGA051・SAGA053・SAGA055・SAGA057・SAGA059・SAGA061 ・SAGA065・SAGA067・SAGA069・SAGA071・SAGA075・SAGA077 ・SAGA079・SAGA081・SAGA083・SAGA085・SAGA087・SAGA089 ・SAGA093・SAGA121・SAGA133・SAGA135 ・SAGQ001・SAGQ003 ・SAGK001・SAGK005・SAGK007・SAGK011・SAGK013 [Compatible Band Numbers] ・DA3S2JM ・S007001J0 ・S007002J0 ・S007003J0 ・D00N1AM ・D0111AS ・DA3T1JM ・DA3S1JM ・DA451MS ・DA401JS ・D0141AM The Seiko lettering has plastic wrap on it, so it is probably unused, but it is uncertain.