IBM 704 - Manual (Page 157)

Replacing the Real-Time Clock
2. Remove the RTC from its socket (system-board connector) 1
with an appropriate tool.
1
2
3. If you plan to reinstall the same RTC later, store it in a
static-protective bag.
4. If you plan to dispose of the RTC, adhere to the local ordinance
requirements and the manufacturer's instructions for
lithium-battery disposal. In addition, observe the
lithium-battery cautions in this section.
5. Remove the replacement RTC from the static-protective package.
Do not touch the pins on the RTC.
Chapter 4. Installing Options 139