Diff of 570009 - Riquartz

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#author("2025-04-25T09:47:48+01:00","default:admin","admin")
#author("2025-04-25T09:54:47+01:00","default:admin","admin")
#ref(570009-1.jpg,zoom,around,right,0x250);
Case: Stainless steel 

Dial: Blue, without stone

*Example serials [#u589865a]
**784453 [#z3a9b683]
-Dated 4.73 for Apr 1973
-Circuit marked B
-3 Adj
-Early shock jewel as used on [[550]]
-Earliest recorded 570 watch