The temperature on the clock is always wrong because the thermocouple (assuming it's that complex) is attached to the black metal case. As everyone knows - apart from the Georgia chronometer technicians - black metal objects tend to heat up quickly in sunlight.
Apparently the clock has an associated 'TEMP RDG DEGRADED' ACAWS message. However, there is a TOP for this at Block 5.2 which states that the ACAWS message is inhibited when the clock is turned on.
The IPT have ordered a PWI on all naff gifts from a well known North American Aircraft Manufacturer and as a result the clock requires replacement from CRILS which should be possible inside 24 hours. Unfortunately, only one clock was made per station and the clock will be replaced in Jan 02.
As for the ACAWS message, it won't be fixed at B5.3 because 'We didn't think you wanted it to work so we didn't design it to do that' (a contractor's engineer was heard to say). Under heavy pressure from Quntiq, the message will be properly implemented at Block 6 for a cost of only £150 000 by which time nobody will take any notice of the temperature on the clock.