Case: Stainless steel, screw on back signed "Ricoh Quartz, All Stainless steel, Waterproof, Japan, 573001" or "A573001"
Dial: Black or grey, aperture for date, with GMT hand, 24 hour track, and revolving outer 24 hour track.
Example numbers†
501422†
- Grey dial
- "Riquartz WT"
- Original bracelet
- Yahoo Jul 2019
No visible number†
- Dated 3-75 for Mar 1975
- Circuit marked AH5
- 570A movement
- Yahoo Oct 2022
No visible number†
- Dated 3-75 for Mar 1975
- Circuit marked AH5
- 570A movement
- As new condition with original bracelet
- Yahoo Aug 2022
Unknown†