#author("2023-12-03T18:56:20+00:00","default:admin","admin")
#author("2023-12-17T12:08:41+00:00","default:admin","admin")
*Tiger eye [#cac72032]
Case: [[Tungsten carbide]], stainless steel back, screw on battery hatch, signed "[Riquartz logo] Riquartz, A 570001, Ricoh, Japan", faceted glass crystal, movement removed through crystal. Stainless Steel bracelet with faceted links.

Dial: [[Tiger eye]], aperture for day & date

Movement: [[570]] 

New price 170,000 yen (approx $580)

**Example [#kf67d65e]
-Movement number 011818
--Dated 8-75 for Aug 1975
--Circuit marked AO2
--IC marked 7504 for 4th week of 1975
--Oval quartz cannister marked UWIH-53F for Mar 1975
--Marked Three 3 Adj
--Shock proof jewel

*Bloodstone [#mba0fe7f]
Case: [[Tungsten carbide]], screw on battery hatch, faceted glass crystal, stainless steel caseback signed “Riquartz, Ricoh, Japan, 570001 S”. Movement removed through the crystal, the crystal/bezel is removed with a razor blade. Stainless Steel bracelet with faceted links.

Dial: [[Bloodstone]], yellow stone at 12, some with aperture for day & date, signed “Ricoh, Riquartz”

Movement: Cal [[570]].

-Battery 303
-Battery hatch gasket 15.3x14mm
-Crystal gasket 30x1.2x0.4mm I profile white nylon
-Crown gasket

**Example [#m6f43604]
-Dated "2-76" for Feb 1976
--Circuit marked "AK2"
--CMOS IC marked "5 16" for 16th week 1975
--Oval quartz cannister marked "UW01-56F" for June 1975
--Latest recorded 570 watch

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