Weems and Plath Nautilus Collection waterproof clock (#160515) and barometer (#161815). These handsome precision instruments are housed in black, anodized aluminum
cases with bayonet mounted bases which make for easy removal
. I have had them (mostly in indoor storage) for eight or so years, and they still work
and show as new. Being offered as a pair for $450 (plus US shipping
from CT) They would cost upwards of $800 together if purchased new.