Nagra have a very nice and Professional Audio / Video reel to reel recorders on their website.
The two pictured above are the Nagra DII and the Nagra IV-S/TC.
Transportable, battery powered four-channel open reel digital recorder using digital audio magnetic tape.
On-Location Film / TV Production
Portable Music Mastering / Wildlife recordings
4-Channels, SMPTE Time code, 24/96 (Stereo),
Tape Directories, Battery powered
Portable stereo analogue recorder using 6.35 mm (1/4 inch) audio tape
On-Location music recordings (Non-Pilot version) / Film and TV production (TC version)
Wide track head configuration for music recordings or Narrow tracks for Time code machines. Three tape speeds, two microphone inputs, built in TC generator. NAB/CCIR or NAGRAMASTER equalization, Filters, battery operated
Full range of the Nagra Pro series can be found here.