Visayan working knife? Or something different?

[Sajen]

I got this knife from an online auction today. Massive and roughly worked blade with V-grind edge, iron ferrule and nice veined wooden handle, the shape reminds me of Visayan handles. 38 cm long, blade alone a little bit over 24 cm at the edge, 7,2 cm high at the belly, nearly 7 mm thick at the spine behind the handle. Any thoughts?