Omega Seamaster chronograph so called Yedi N.O.S.

Omeg Seamaster chronograph automatic so called Yedi 1973 N.O.S.
Cal. 1040 based at Lemania 1341.
Blue reflection dial mint and original and hard to find most of them does have a l.grey dial.
Movement 35603565.
Case reference 176995.
Case size 42 mm ex signed crown x 59 mm.
Brushed and polished sides.
Full lenght original strap and buckle with end pieces no:175.
Original scratch free mineral glass.
A real beauty !