Clockwork Golem

Typically crafted in humanoid form from brass, iron and steel clockwork golems are among the most enduring golems with an eternal power crystal in their chest which allows them to travel deep into the earth and carry out their labours without end. So long as the power crystal of a Clockwork Golem remains intact they will eventually self repair any damage short of being melted down by volcanic lava.

Brass golem

Clockwork Golem

Savage Earth: Cold Moon Sodium_Noir