Seiko - Chronos Daydate Kanji Maille Acier Noir - 1983 bracelet How can the exact year

How can the exact year of production be determined

Type : stylo bille

5mm (37mm with crown)

souvent perçue comme une passerelle entre les ères

elegant and discreet

Seiko - Chronos Daydate Kanji Maille Acier Noir - 1983 bracelet How can the exact yearTechnical characteristics: Brand: Seiko Chronos vintage watch made in Japan Estimated year of production: 1983 Gender: male, female Movement: quartz Function: second, date, day (English, Japanese) Case: steel Case back: steel Case excluding crown: 34mm Case with crown: 36. 3mm Lug to lug: 38mm Thickness (including Crystal): 9. 4mm Lug width: 18mm Bracelet: original 19cm maximum Buckle: original Crown: original Crystal: mineral (condition: 8 10)