Seiko SBTR017 Tachymeter 8T63 JAPAN for $281 for sale from a Seller on Chrono24
SEIKO cal.8T63 Mecha-Quartz Try to Modification / Daytona Type Case Customization - YouTube
Seiko Essentials 8T63 Caliber 10ATM WR Chronograph Men's Watch... for $199 for sale from a Trusted Seller on Chrono24 | Watches for men, Seiko, Chronograph