Gutmann Explorer Dive Knife - Want any knowledge you may have about this knife

[cowhorse01]

Below is a link to the pics on ebay where I just bought these knives. Gutmann Explorer Dive Knife, Model 25-270 , 440 Stainless, Japan (hope it was Seki), Just looking for any input of knowledge on these. Must be kinda rare now anyway as I cannot find anything out about these knives on any search. The searches just show with other Explorer models. Any info woud be appreciated
Thanks
Cary


http://www.ebay.com/itm/221450741028?_trksid=p2059210.m2749.l2649&ssPageName=STRK:MEBIDX:IT

 

[cowhorse01]

below is a link to the pics on ebay where i just bought these knives. Gutmann explorer dive knife, model 25-270 , 440 stainless, japan (hope it was seki), just looking for any input of knowledge on these. Must be kinda rare now anyway as i cannot find anything out about these knives on any search. The searches just show with other explorer models. Any info woud be appreciated
thanks
cary


http://www.ebay.com/itm/221450741028?_trksid=p2059210.m2749.l2649&sspagename=strk:mebidx:it

anyone have info you can share on this knife