Eterna.Matic anatomic seven-day.
Calibre: 1543 K quick-date setting manufacture.
Case ref: 153 T
Start of production 1970
Steel strap full length I believe non-original but with signed original Eterna foldings clasp!
Hard to picture the light bolded glass all you see is reflection!
Beautifull mint grey dial, shining mint hands, and date cadaster.
Size including the signed crown 41,5 mm. a big watch and a beauty!