SEIKO MONOPUSHER CHRONOGRAPH REF: 458990
THE FIRST JAPANESE CHRONOGRAPH; One of the technological advancements with which Japan surprised the world was the first Japanese chronograph watch: Seiko's 45899 manual. Cal 5719
The Suwa Seikosha factory developed this watch exclusively for the celebration of the 1964 Summer Olympics. It mounts the hand-wound caliber 5719a
MODEL: 458990 Monopusher chronograph
YEAR MANUFACTURE: 1964
CASE DIAMETER: Stainless steel. 37.5mm without crown
LUG WIDTH: 18mm
MOVEMENT: Hand-Winding. Cal 5719A
DIAL: All original, never refurbished. Great cream patina. Very good condition. The dial has lost some metric indices between 10-12 and 4-5.
AESTHETIC CONDITION: Vey good general condition considering it age.
OPERATION: It works very well. The movement runs strong. Seems clean. It has not been timed and I do not know the service history.
STRAP: The watch is shipped with a learher strap.