Collect the listed number of golden chests at the indicated location to get the corresponding reward.

Earth: Old Russia
One chest: Forester 2.1 gauntlets (Hunter and Titan)
Two chests: Baron RS/2a
Three chests: No reward
Four chests: Enigma Burn chest armor (Warlock)
Five chests: S-22 Nomad (Hunter), S-22 Cavalier (Titan), or S-22 Seeker (Warlock) Sparrows

Moon: Ocean of Storms
One chest: Nox Cantor III
Two chests: Jade Rabbit emblem
Three chests: Gwalior Type 0 helmet (Titan), Chroma Vow helmet (Warlock)
Four chests: Brawler's Cloak (Hunter), Mark of the Chosen (Titan), Trained Chaos (Warlock)
Five chests: Arihant Type 1 chest armor (Titan), Tengu Operant chest armor (Warlock)