Decided to let go of my SBBN049 Tuna on rubber strap since I am mostly wearing my SLAs and SBBN043 Blue Tuna. Everything is perfect and the second hand hits every marker and the bezel aligns perfectly. This one has Seiko’s amazing 7C46 quartz movement in it. The 7C46 is a (Hi-Tech) multi jeweled movement built with all metal components with extremely "Hi-Torque tolerances and High efficiency". All designed to handle the extremes of deep saturation diving.  SPECIFICATION Movement: Quartz Calibre 7C46 Case Material: Stainless Steel, Hard Coating Case Size: 47.7mm Case Thickness: 14.1mm Band Material: Stainless Steel, Hard Coating Water Resistance: 300m Glass: Sapphire, Antireflection Coating Features: Antimagnetic, Glowing Hands, Glowing Markers, Date, Day, Screw-down Crown. The watch is in good condition, sapphire crystal is perfect  with a few faint scratches seen mostly on the keeper, and if you look under magnification faint marks on the bezel. Did notice when looking at the close ups a small ding on side of the bezel at 9 o'clock, pictured. Because these don't have any lugs, they sit nicely on your wrist and wear better than my 44mm MM300 SLA023. Comes with box and papers on OAM rubber strap. Looking for $745 USD with PP shipped in CONUS not currently looking for trades.