Why is my wrist watch sometimes cold, and sometimes warm?

[LudoLudo]

Hello forum,
I have a metal wrist watch made of stainless steel and titanium (I think) and I was wondering why it is sometimes warm and sometimes cold (or colder than my body temperature it even gets unconfortable). I was thinking, is there something like a threshold body temperature where the body heat starts transferring to the watch and vice versa? could someone possibly explain?

Thanks very much for your answers!
:)

 

[Dr Lots-o'watts]

It's cold when you put it on because it's about 15degC below your body temperature and metal conducts heat away like crazy. What you feel is that heat drain. To feel cold is to feel body heat being drained away.

But it's warm once it's been in contact with your wrist for a while because it's now 37degC, like everything else you're made of.

 

[LudoLudo]

It's cold when you put it on because it's about 15degC below your body temperature and metal conducts heat away like crazy. What you feel is that heat drain. To feel cold is to feel body heat being drained away.

But it's warm once it's been in contact with your wrist for a while because it's now 37degC, like everything else you're made of.

Thanks Dr. Lots for your reply, the thing is, sometimes it gets cold after I have worn it for several hours and after being warm, maybe after that it'll get warm again. Why is it not always at 37°c while I'm wearing it?

 

[Drakkith]

Thanks Dr. Lots for your reply, the thing is, sometimes it gets cold after I have worn it for several hours and after being warm, maybe after that it'll get warm again. Why is it not always at 37°c while I'm wearing it?

Because only one side of the watch is touching you, and also, if you wear a watch like i do, then your band probably isn't 100% tightened down. My watch right now is sitting just a fraction of an inch above my skin, which causes it to receive less heat from my wrist, and if it is cold out, then my watch gets cold. =)