ShareSaveAdd as preferred on GoogleRumeana JahangirNorth WestBBCPolice had to be called after crowds built up outside the Liverpool branch on SaturdaySwatch stores in Manchester and Liverpool were shut for a second day after queues built up again, with shoppers keen to purchase a new £335 pocket watch.
The Swiss firm closed many shops in cities across the UK on Saturday, saying it was due to "safety considerations".
In a social media post following crowds at branches worldwide, they asked people "not to rush to our stores in large numbers" and said the items - which have been resold online for up to £16,000 - would "remain available for several months".
However some criticised the management of the product launch, saying the watches should be available for sale on the Swatch website and that police resources had been unnecessarily diverted.
In an online statement, the firm said: "To ensure the safety of both our customers and our staff in Swatch stores, we kindly ask you not to rush to our stores in large numbers to acquire this product.
"In some countries, queues of more than 50 people cannot be accepted, and sales may need to be paused."
One man was arrested in Cardiff while police were called to reports of people "making threats" outside the Liverpool store.
The firm launched their new "Royal Pop" pocket watch collaboration with luxury watchmaker Audemars Piguet at selected stores worldwide on Saturday.
Swatch said they were inspired by the Pop Art movement of the 1950s and 60s, describing it as "a disruptive collaboration between two icons of Swiss watchmaking".
The collection combines the transformational design of Audemars Piguet's Royal Oak with the famously-colourful Swatch Pop brand from the 1980s.
An event was cancelled in Dubai, while police officers were also called to launches in France and Switzerland.
In New York, shoppers camped for a week in Times Square, with reports of some becoming unwell during the wait.
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