Rare collaboration between Casio Oceanus and Japanese luggage brand Briefing. Released July 2018, limited to 700 pieces worldwide. JDM model. I bought this watch in Japan in 2018. Key specs: Case: DLC-coated titanium, 42.8mm, 10.7mm thick Crystal: Sapphire with AR coating Movement: Caliber 5347, Tough Solar with radio time sync (Multi-Band 6) Functions: Dual Dial World Time, Smart Access (6-motor system), automatic DST Water resistance: 100m (10 ATM) Colorway: Black DLC case/bracelet with red accents — Briefing's signature BLACK × RED Dial: Textured pattern inspired by ballistic nylon I've worn it only a couple of times over the past eight years, which is why it's in such good condition. There are no scratches anywhere except the clasp, which unfortunately has a visible scratch. I'm selling it because I don't wear it as often as I should. It's a complete set.