I will bet that it actually does have a separable ganga, but it is so well matched and tight that it is extremly difficult to see. It has taken me 20x to see some separation lines on some of the kris I either have or have handled.
Below is a fuzzy picture (I put in extra fuzz for you
) of my Balinese keris (1800?), my early Moro kris (1790s-1800), and my silver hilted kris (1850s). Notice that Moro kris get larger as the time frame comes closer to 1900.