d2mac, Author at RK Watch Service https://rkwatchservice.com/author/d2mac/ Watch Repair & Restoration Service Thu, 12 Jun 2025 23:46:06 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://rkwatchservice.com/wp-content/uploads/2024/03/cropped-RK-Watch-Service-Logo-Chicago-Watch-Repair-Web-32x32.png d2mac, Author at RK Watch Service https://rkwatchservice.com/author/d2mac/ 32 32 What i found in an used Casio Calculator https://rkwatchservice.com/what-i-found-in-an-used-casio-calculator/ Sun, 01 Jun 2025 12:18:30 +0000 https://www.watchuseek.com/threads/what-i-found-in-an-used-casio-calculator.5629338/ Watch Repair & Restoration Services in Northbrook & North Chicago Suburbs. Contact us for a free estimate at 224-213-7371. Learn more from our news blog.
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d2mac

I recently bought an old Casio Calculator for my small vintage calculator collection.
It came working and i was scared of a destroyed battery compartment.
But there was still a Casio AA cell in it.
The date code on then battery is 07-93!
1.4V!
Man i wi...

The post What i found in an used Casio Calculator appeared first on RK Watch Service.

]]> Watch Repair & Restoration Services in Northbrook & North Chicago Suburbs. Contact us for a free estimate at 224-213-7371. Learn more from our news blog.
RK Watch Service - Watch Repair & Restoration Service
d2mac

WatchUSeek Watch Forums WatchUSeek Watch Forums

I recently bought an old Casio Calculator for my small vintage calculator collection.
It came working and i was scared of a destroyed battery compartment.
But there was still a Casio AA cell in it.
The date code on then battery is 07-93!
1.4V!
Man i wish i would know a current make that has more then 30 years life span without leaking!

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The post What i found in an used Casio Calculator appeared first on RK Watch Service.

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