Seiko 5 Speed Timer - 7017-6010 seiko The case back reveals the

The case back reveals the serial number 1127112

reference H601-507A

BRAND Citizen MODEL Crystron REFERENCE  8630-860152 Y  YEAR 1975 MATERIAL Stainless-Steel WINDING Quartz CALIBER  8630 SERIAL/SKU 51010228/1128 CASE SIZE WITHOUT CROWN 37mm CASE SIZE WITH CROWN 38mm CASE THICKNESS 8mm BETWEEN LUGS 18mm SERVICE Serviced STRAP LEATHER

while still offering the toughness you’d expect from a daily companion

referred to as the Cruising Moonphase Chronograph

Seiko 5 Speed Timer - 7017-6010 seiko The case back reveals theHere's a piece of racing history right on your wrist. This Seiko 5 Sports Speed Timer 7017 6010 is a genuine legend from 1971 and a cornerstone of vintage Seiko chronographs. With its sporty design, clean black dial, and a prominent orange seconds hand, it perfectly captures the spirit of the era. This isn't just a looker; it's a genuine Japanese Domestic Market icon that helped build Seiko's reputation for serious mechanical prowess. What makes this