Recommend 32.768KHz crystal for use with 16LF88 Timer1?

From: Kevin (spamisannoying_at_sothisis.fake)
Date: 02/13/05 

Date: Sun, 13 Feb 2005 14:45:31 -0400

Hi,

Quick question: Can someone recommend a thru-hole crystal for use with
the 16LF88 (one of the newer NanoWatt PICs with the low power
optimized Timer1 oscillator). (Recommend a digikey part #?)

What I've figured out so far:
Tolerance plus/minus 20 PPM
ESR: 30 - 50 K max
Max Drive level probably should be 1uW (which means that I probably
need a series resistor to prevent overdriving the crystal)
Load capacitance of crystal: 12 pF

1. Are the above specs correct for selecting a crystal for Timer1 use?
2. I don't understand the shunt capacitance parameter for crystals -
from what I see on datasheets there's 1.00, 1.35, and 1.60 pF? Which
one do I choose?
3. Will be prototyping circuit on solderless breadboard - any problems
with doing this? (I know that due to the low voltage/power levels as
well as differences in capacitance etc things may be different).

Thanks
Kevin.