it seems like FPJ's design would have a larger sliding surface between the locking jewel and the escape wheel compare with the Charles Frodsham's natural escapement, which has another smaller locking jewel in the center of the lever, which locks with every 2 "swings" of the lever. If that makes sens
more suitable for more sportive activities. I read that the Linesport collection is born as they are owners asking for a Journe that they can wear while engaging in more physical activities. Were there any changes made to the shock absorbing system? Thanks.