Case: Stainless steel, screw on back signed "Ricoh Quartz, All Stainless steel, Waterproof, Japan, 573001" or "A573001"
- Dial:
- Black or grey
- GMT hand, 24 hour track
- Revolving outer 24 hour track turned by the crown
- Aperture for date, , and
Example numbers†
501185†
501232†
- Yahoo Oct 2025
- Grey dial with black bezel "Riquartz WT"
- Original bracelet
- 570 Circuit marked "A"
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
- "A-H" sticker to caseback
- As new condition with original bracelet and sticker on caseback
- Yahoo Aug 2022
Unknown†