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Gruen Alarm [message #19519] Sun, 01 June 2025 16:05 Go to previous message
Jenneke is currently offline  Jenneke
Messages: 1995
Registered: May 2013
Location: Netherlands
Gruen Authority
Model name: Gruen Alarm
Type: wristwatch
Period/date: 1958-1960
Gender: male

Case Maker: unknown, waterproof
Case Material: 10k RGP bezel, stainless steel back
Case Serial: none
Case Style no: 258A

Caliber: 940RSS (seventeen jewels, unadjusted.
Movement Maker: Venus (cal 230)
Movement Serial:  none

Other:
Dial has RA Swiss on it. Yup, still radioactive. When the alarm is on the dot is green, normal mode the dot is red. Unusual is only one barrel. Movement patent is 2803940 ( https://docs.google.com/viewer?url=patentimages.storage.goog leapis.com/pdfs/US2803940.pdf)

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You can only waste time if you forget to enjoy it - Loesje

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