This is a placeholder: 1984 Sekai 2400
I will get all the info. For now:
Brakes: Diacompe cantilevers (06-83 manufacture date, I think)
Derailleurs: Suntour ARX rear (6 speed) and Suntour 7 front
Cranks: Sutour GT tripple 52-47-34
Pedals: Sakae pedals + ?? brand clips
Handlebars: Sakae
Stem: ???
Rims: ???
Hubs: ???
BB Serial #: forthcoming
...