The 750 is a great knife. I agree with DaveH, the handle color, material and lock style are really the only similarities to a Sebenza. Many companies produce frame-lock knives like this. The majority make a blade style more similar to the recurve of the 750 than the clip or drop points of the Sebenzas....but enough about those, back to the 750.
The 750 was only produced for a few years. I don't recall which ones exactly, sometime in the early 90s. The knife went through one modification mid stream. The original lock bar was quite wide, about half of the back scale. After some issues with sticking locks and excessive wear creating loose fit, the lock bar was narrowed, by about 50%. The newer lock bar was supposed to be quite an improvement over the original, but I can not speak from experience. My 750 has the wider bar and has worn until it almost touches the front scale.
My 750 still sees regular use. Benchmade CS has told me to send it in to them and they can see what they can do about adjusting the lock. They do not have any more spare parts for the knife though. I may end up just having a slightly larger blade stop machined for my knife.
I have had the opportunity to watch my knife age. I bought it brand new and have carried it as my hard use knife off and on for several years. The Ti lock bar did indeed wear quite fast against the steel of the blade. I am not worried about the lock failing, but the blade has developed a slight wiggle through the years. I think the PB washers may help this as well. The Nylatron washers have seen better days.
The steel is typical Benchmade high quality. The original blades were ATS-34 and were switched to 154CM a little sooner than halfway through their life I believe.
If I remember correctly, the 750 was discontinued for several reasons. The tooling for working with Ti was more expensive than Benchmade wanted to keep up with at the time. They were also unable to completely remedy the issue with the Ti wearing so much faster on the frame lock compared to the Ti liners on the LinerLock knives they were producing at the time.
Though I have not done it yet, the plain Ti slabs on the 750 beg to be customized. I believe Matt Cucchiara has modded a few of these in the past. His work looks incredible on the 750. He has also been known to switch the clip from tip-down to tip-up, but you would have to contact him about that.
So there's a little more info on the 750. In my experience it does not live up to the fit, finish or durability of my Large Regular Sebenza. It is however substantially less expensive and a great place to start for someone looking to get a Ti handled frame lock.
By the way, $100 is about average for internet sales right now on the second-hand market for a NIB knife. Given the chance to examine the knife and ensure good fit and finish I would be willing to pay the $100 for a good specimen.
