7a38-7270] I changed my battery today, and my watchmaker told me is untouched inside. 1988, by 3 years with me and the most worn watch in this time. Looks like is inspired
SOLD: Seiko 7A38-7270 chronograph - YouTube
Seiko Vintage Quartz Chronograph Speedmaster 7A38-7270 from 1988 two t – Temple of Time