This Stuhrling Skeleton Watch is currently being liquidated for just $88 shipped, originally priced at $525. This watch features a “durable synthetic sapphire crystal [that] provides a window into the automatic self-wind movement.” Product page. Continue reading for a video preview.

Automatic watches do not operate on batteries. Automatic watches are made up of about 130 or more parts that work together to tell time. Automatic movements mark the passage of time by a series of gear mechanisms, and are wound by the movement of your wrist as you wear it.

[via Amazon]