Seiko calls this a Hi-Beat...
It's the "Seiko SUS Military" released in 1996. With a 25 jewel 4S15 movement operating at 28,800 vph based on a King Seiko movement from the 1970s. There were two versions, a black dial (SCFF001) and a silver dial (SCFF003). I understand that 'SUS' stands for 'Simple U Strong'... it's an automatic, can be hand wound, hacks, display back, date window below the 4, 35mm case, and power-reserve of 40 hours.
Casey
Several manufacturers used to call 28800 vph watches Hi-Beat at some point
This includes Seiko and JLC amongst others. Your SUS was part of the return of high end mechanical movements for Seiko in the 1990s and I believe the 4S15 movement was a modern version of the 52 series of movements from the 1970s.
And the watch is definitely one I have been on the hunt on more or less since joining here but they are exceedingly difficult to find nowadays. Lovely example you have. They came with a pre-distressed case, meaning each was unique 
I guess they must have been successful in their mission to get young people into mechanical watches again, since the sales of mechanical watches soared since.
I guess they must have been successful in their mission to get young people into mechanical watches again, since the sales of mechanical watches soared since. Thanks a lot for chiming in, Casey! And if you ever get bored of your SUS...
hahaha...
I searched for many years as well... found this one in December 2003 in a small second used watch shop under the tracks in Ueno, Tokyo... I just happened to be wearing it this weekend. Thanks for the additional information ; )
List is looking impressive! Here's a few more: UN cal "NB 11 QU" is based on reworked ETA 2826 movement. Also the COSC Bucherer as seen on this weeks WS - ETA 2824, I think. Technos used ETA 2734. [nt]
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