I picked up this small watch locally here in Adelaide Australia:
It has all the characteristics of a military watch c1940:
Arabic Numerals with Lume
Minute markers, with seconds marked in 5 second intervals
15 Jewel Movement
Center Second hand - in red
Stainless Steel back - marked Sogoa, within a diamond shape
Branded as Matex, but absolutely no markings/branding on movement, apart from the regulation speed adjustment.
Not even country of manufacture anywhere.
It still runs quite well, for about 31 hours.
I've tried to find out more about the movement but no luck.
Can anyone tell me who made this movement?