**Seiko 6139-7100 ( HELMET) automatic chronograph rare vintage watch..*****case, bracelet, dial, glass, crown, buckle, good condition .....**tachymeter timer .(very good)original**Cal:original seiko 6139B automatic..**17 jewels**made in Japan**Case size: 41mm-49mm**bracelet: 18mm-19cm( original old seiko band )after market, s.steel**calendar feature: day and date works well..**Quick set date and day works well..**Watch and chronograph: works well..**Chronograph reset: it works well...**
