Diff of 587004 - Riquartz

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#author("2023-04-01T23:26:30+01:00","default:admin","admin")
Case: Gold plated, stainless steel snap on case back signed "Ricoh Watch Co Ltd. Japan, 587004", with two pairs of adjustment buttons to caseback.
#author("2023-04-01T23:26:57+01:00","default:admin","admin")
Case: Gold plated, stainless steel snap on case back signed "Ricoh Watch Co Ltd. Japan, 587004", with two pairs of adjustment buttons to caseback marked A, B, A', B'.

Dial: Double dial displaying two time zones

Movement: Two calibre 580