I've always felt that cost was a second place to function. I believe that the right tool for the job is good value even if the price is high. I'm in the market for a very sturdy tool watch for work, play and leisure. Something that can handle office casual desk work, climbing ladders and doing maintenance, ski patrol duty in winter and still dress up for a date. I'm also inclined towards getting one great all around watch instead of a few middle range specialists.
The 856 has IMO a better SW300 movement compared to the 656's ETA 2824 movement. It also brings a bit larger case size, tegemented case and Sinn Ar dehumidifying technology
656 = $1,100 (estimate for used price + overhaul)
856 = $1,610 (before Watchbuys raises the price on September 1)
What do you WIS think? Sit online and wait for a 656 to pop up or spend $510 extra for a new 856 before the price increase?