Case signed A 570001
Dial: Tiger eye, aperture for day & date
New price 170,000 yen
Case: Tungsten carbide, screw on battery hatch, faceted crystal, caseback signed “Riquartz, Ricoh, Japan, 570001 S”
Dial: Green stone, yellow stone at 12, some with aperture for day & date, signed “Ricoh, Riquartz”
Movement: Cal 570