A Tuna that charges itself
By Kenji Watanabe, Osaka ยท
The Tuna family started in 1975 with Seiko's professional diver, a big shrouded case built for saturation work. The SNE577 keeps the shroud but uses V157 solar quartz, which makes it about as low-maintenance as a dive watch can be.
46.7 mm by 13 mm, rubber strap, Hardlex, 200 m, date, rotating bezel. On the wrist the shroud makes it look larger than it is, but the lugs are short so it fits reasonably.
Against it: Hardlex at 450 to 475 dollars, and the rubber strap is stiff. Also the shroud collects dust and sand, which you will clean with a toothbrush.
For a person who dives or swims and wants a serious tool with no battery worries, I would recommend it over many mechanical divers at the price.