At around 3.25am on Sunday, December 4, officers were called to the antique shop and confirmed a break-in at the premises.
A number of antique OMEGA watches had been stolen, to the value of £17,000.
A 57-year-old man and a 32-year-old man from Lewes have been arrested on suspicion of burglary.
They have both been bailed until March 4.
Crime Investigator George Shannon said: “We would really like to hear from anyone who has any CCTV or doorbell footage, in particular from anyone who lives in Cliffe High Street and adjoining Malling Street.”Anyone with information or relevant footage is asked to contact police online, or by calling 101 quoting serial 165 of 04/12.
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