CERTINA, DS-2, Chronolympic, chronograph

Case size: 42.5 x 40.5 (48) mm
Material: steel
Movement: manual, caliber 29-062 (Valjoux 726)
Year: circa 1972
Crystal: plastic crystal
Bracelet: leather strap
Reference number: 8501.800
Serial number: 8726326
Case number: 8501.800(HF)

Please keep in mind that an overhaul might be needed, since no service history is available.