| Re: Renata No 31 Battery [message #4351 is a reply to message #4350] |
Sun, 19 October 2014 17:28   |
 |
Barney Green
Messages: 1725
Registered: February 2014
Location: Wolfsburg, Germany
|
Gruen Authority |
|
|
I tried it and they came up with the 312 which is for most likely the right one as it is a hearing aid battery. These are Zinc air cells which have a different characteristic than the normally used silver oxide baterries for watches. I guess this old model was a mercury cell and as such is nowadays banned.
Gary, most helpful woulfd be measurung diameter and height of the battery at a tenth of millimeter. Then I should be able to find the correct modern equivalent...
Gruen, Gruen, Gruen ist alles was ich habe... Gruen, Gruen, Gruen is all I have...(German folklore song)
|
|
|
|
Vintage Gruen
Blog
Pages
Search
Help
Members
Register
Login
Home
