Newgate Time Lord Mantel Clock Matte Black Classic Mantel Clock | Cave Black | Power: 1x AA Battery A classic black mantel clock with a roman numeral dial, in a lightweight precision engineered acrylic case. Known as ‘silent sweep’ in the industry, the hands move in a constant sweeping motion rather than a stepped tick. So you won’t hear any ticking but if your hearing is particularly sensitive in a completely silent room you may hear a very quiet whirring. Available in a range of monochrome colour options, this modern matt-finish mantel clock holds a roman numeral dial and glass lens.