Seiko Prospex 8R46-00C0 SBEC015 Speedtimer OREGON Limited Automatic Mens Watch - Japan Pre-owned Vintage
Seiko Malaysia - The charcoal-gray dialed Speedtimer incorporates a new movement from Seiko's most advanced chronograph 8R series, Caliber 8R46. The dial design is a subtle nod to the 1964 Crown Chronograph.
Seiko Caliber 8R46 Watch Movement | Caliber Corner