Each cufflink has a Quartz Japanese Seiko PC21 mechanism with a high degree of accuracy, losing less than 30 seconds per month at normal room temperature.
Each watch is made up of an alloy metal casing and a 304 stainless steel back with higher corrosion resistance than regular steel, able to withstand the rough and tumble of everyday wear.
The crystal for each watch cufflink is manufactured out of mineral glass, providing the clearest possible view of the dial and the hands whilst maintaining excellent protection.