Up for grabs is one of my all-time favorites: the SBBN007 Tuna. This is a perfect example of a no-nonsense, purpose-built Seiko diver, featuring a clean, uncluttered dial (no Prospex logo, “Marinemaster” text, etc.) and a case free of DiaShield coating. Thanks to Seiko’s case design, it wears far better than the dimensions would lead you to believe. I avoided Tunas and MM300s for years, but after owning several, I’ve found they wear much smaller than expected due to the case shape and short lug-to-lug distance. This is the cleanest SBBN007 I’ve ever come across over the years. There are only minor signs of wear on the shroud and bezel, consistent with careful use. I picked this one up specifically because of its condition compared to many SBBN007s I’ve ran across that lived much rougher lives, as well as its complete originality, no modifications or refurbishments of any kind. The watch is running flawlessly. Alignment is spot-on, bezel action is crisp, and the crown tube has loads of thread. It will come mounted on an Uncle Straps GL831. Also included is a genuine Seiko box and papers set; however, these are not original to the watch. I know I’ll likely regret letting this one go, as I doubt I’ll come across another example this clean. That said, I have an upcoming overseas move and need to start slimming down the collection. Price: $725 shipped Trades: None Shipping: CONUS only Feel free to reach out with any questions, and thanks for looking!