A technical work of art with precise, flawless craftsmanship
A true heir to a quintessentially British clockmaking tradition, this sophisticated table chronometer movement keeps time according to the highest marine chronometer standards.
Differing from marine chronometer mechanisms, this movement is not horizontal and round, but vertical and rectangular, as typically found in forward-facing carriage clocks. Its escapement works in close conjunction with a balance wheel and hairspring. The ovalising balance is an uncut ring of brass fitted with regulating screws and reinforced with a cross-bar made of invar. This reputable alloy helps it keep its shape, and therefore specific rhythm, while temperature varies. A start-stop device halts the movement on demand, allowing perfect synchronisation with official time.
Spring Detent with fusee-and-chain drive
Hour, Minute, Second, Power Reserve, Start/Stop device
Height 183 mm
Width 150 mm
Depth 90 mm
“The Thomas Mercer DNA is formed by three tenets: chain and fusee drive, 8-day power reserve and spring detent escapement. The 21st century adds a fourth dimension: the oscillator visible through the dial.”