Diff of 512023 - Riquartz

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#author("2023-11-30T04:59:45+00:00","default:admin","admin")
#author("2023-11-30T05:01:01+00:00","default:admin","admin")
Case: Rectangular gold plated, stainless steel snap on back, without crown but two pushers to adjust time

Dial: White, gilt hour markers, signed "Ricoh, Chateau, Riquartz, Japan E-512-16-04"

Movement: Cal [[510]]

Battery 384

Crystal 

Crystal gasket 

Case back gasket 0.4x23.6x24.3 round profile

Pusher gasket orings
Pusher gasket orings 0.7x0.5x1.7mm G36768

*Example [#y725d402]
-Dated 77-Y” for Nov 1977
--Quartz cannister marked MU91F
--IC marked "7G2 841" for 2nd week of July 1977