Chaos erupted outside a shopping mall as locals battled to buy a new limited edition watch in Bangkok, Thailand.

Footage shows frenzied shoppers queueing outside the CentralWorld building during the launch of the limited-edition MoonSwatch Mission to Neptune Moonshine Gold accessory on August 30.

Mall-goers had begun waiting in line hours before the scheduled sale at 7 pm, as there were only 500 units available and each person is only allowed to buy one.

But when the anticipated time drew near, the shoppers jostled to keep their place in the queue, eventually devolving into chaos as the crowd pushed each other outside the store.

The prized Neptune Moonshine Gold, a product collaboration between Omega and Swatch, returned to select stores around the world on August 30, to coincide with the Blue Moon phenomenon.