A sand clock

name=a sand clock stats= +2 wis, -2 dex, -2 str slot=held armourtype=talisman weight=light weight: 1,9kg material=made of glass quality=shoddy sacvalue=22600 desc=One of those old sand clocks used in the middle ages. Not too accurate and of gargantuan size. Maybe if you concentrate enough you can read the hour from its magical runes: Tue Oct 24 23:34:18 2006. from=Midnight Carnival handles=It is called clock and identified as 'sand clock', 'clock' and 'talisman'. other=Wannard from Shadowkeep: 4656
It is considered "active" all the time, thus feather weight will not last long.