Heuer. An unusual stainless steel automatic chronograph with date and a stainless steel bracelet

Heuer. An unusual stainless steel automatic chronograph with date and a stainless steel bracelet
Model: Monaco
Reference: 1133B
Date: 1970's
Movement: 17-jewel Cal. 12 self-winding chronograph
Dial: Square matte blue, fifth seconds ring, applied polished baton and dot numerals with adjacent luminous dots, shaped square white 30-minute and 12-hour registers, polished hands with red stripe and luminous fill, red sweep hand
Case: Square tonneau with crown at 9 o'clock, no. 160941
Strap/Bracelet: Steel, tapered with graduated links, deployant clasp signed Omega 1159
Signed: Case, dial and movement
Size: 40mm