What's the significance of the contract date? Is it because the tritium tubes fade?
Thanks for the photo VERY good for getting an idea of relative sizes.as far as i know, the descriptions are as follows:
SAR - Search and Rescue
TSAR - tritium search and rescue
GSAR - government search and rescue
JSAR - jumbo search and rescue
CSAR - chronograph search and rescue
SAR-D - search and rescue - defect
the SAR name, of course, was just a nickname given by owners and admirers since they were initially intended for use with the Canadian Forces Air Force Search and Rescue Technicians. the SAR-D was so named because of the defect dial which indicated the use of tritium when in fact there was none.
i recently gave up almost my entire watch collection, including a few SAR series watches, to fund a grail which i'm STILL trying to pay off.
shameless photo plug:
. . .and with each new contract there may be changes to the specifications such as the addition or removal of tritium, or the use of the "U.S. Government" branding, or the use of 60 or 120 click bezels, etc. and with each new iteration of the SAR series, a new nickname is given, such as TSAR, GSAR etc etc etc.