G120HDR RTC Components

I want to equip the Real Time Clock (RTC) on my G120HDR. I assume I need to solder a watch crystal to the unpopulated Q1 site on the board and a 3v nominal Lithium battery between VBAT and GND?

Most of the watch crystals with the correct footprint I find in electronics catalogs are 32768Hz while the LPC1788 datasheet talks about “32kHz”. Should the crystal be exactly 32000Hz, or is 32768Hz the correct value? Can you give a recommended part number from, say, Mouser?

@ JohnH - The 32768Hz is correct.