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classically structured column-wheel chronograph movement ticks
• Limited to 58 pieces
Glass window in the top of the case
Sophisticated art connoisseurs used them to demonstrate and impress with their interest in the progression of science
as well as the U-shaped glass glued on a mitre
PENDULUM LENS DIY Clock kits classically structured column-wheel chronograph movementA solid pendulum lens can be ordered as an optional extra for the pendulum. The fact that there is less air resistance means that the amplitude of oscillation, and consequently the rate, remain steadier. The lenses are numbered in sequence and can be fitted with the engraving either at the front or at the back. The lens is available in bronze or nickel finish.