The Seiko UFO Diamatic 6119-5411 is not your everyday vintage watch. It’s bold, round, and gold. It looks like it came from space—hence the nickname “UFO.” The case is wide and flat with smooth curves, giving it a strong retro vibe. If you like watches that stand out, this one’s for you. This model was made in the early 1970s. Back then, Seiko was experimenting with shapes and styles. The “Diamatic” branding was part of that. It hinted at precision and sparkle. This model kept the reliable 6119 automatic movement—no battery, just wrist power. The movement is known for being tough and simple to service. The gold-tone case is what grabs you first. It has that 1970s warm tone—not too bright, not too pale. It’s electroplated, but done well. The shine holds up after decades. This one still looks strong, with only light wear. The dial is just as cool. It has day and date windows, simple hands, and a clean layout. Nothing feels crowded. It’s easy to read, even with the extra features. The day display is bilingual on many models, a fun bonus for collectors. It runs well for an automatic watch from this era. Around a minute or two per day drift is normal. You wind it by moving. No crown turning needed unless it's stopped for a while. That’s part of the fun—wear it and keep it alive. This exact piece still has its original strap and buckle. That’s rare. Most vintage Seikos get matched with modern replacements. This one stayed original, and it shows. The bracelet hugs the wrist and finishes the full '70s look. Seiko fans love this design because it's different. The UFO case isn’t for everyone, but that’s the point. It’s not trying to be subtle. It’s here to make a statement without shouting. This watch works for collectors or anyone who wants something with character. It’s dressy, casual, and fun—depending on how you wear it. Throw it on with a denim jacket or a polo shirt. It fits both. On eBay or vintage forums, a Seiko UFO Diamatic like this usually sells for $120 to $250 USD, based on condition and originality. You can buy this exact preowned vintage watch for sale right now on seikovintagewatch.com.