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OPUS SECUNDA M 130 - The steady swing of the one-second pendulum and the quiet ticking of this high-precision timepiece convey a sublime serenity. The new Opus Secunda M 130 hangs on the wall like a painting, elegant and flat. Despite its complex inner workings, it only takes up a modest 12 centimetres on the wall. The use of never-before-seen technical refinements makes the Erwin Sattler manufacture calibre 1736 the flattest ever precision movement. Each movement is engraved with an individual number.

The anti-reflective mineral glass allows a completely unhindered look at the dial, hands, movement and pendulum. The U-shaped glazing is cut and glued on a mitre in a single piece by expert craftsmen. The rims and base are decorated with metal inlays. And there is no need for a locking hook, thanks to the discreet magnetic catch on the door.
The elegant design of the Opus Secunda M 130 is dominated by a skeletonised dial, which allows a glimpse of the gold-plated gear wheels. The spherical moon in a funnel also gives the timepiece a unique look. It is hand-painted with the highest level of attention to detail.
This seconds pendulum clock is also an extremely accurate timepiece, maintaining a maximum accuracy deviation of three to four seconds per month. A weight running down the side allows a power reserve of 30 days. The fine gear wheel teeth and the use of ball or jewel bearings for all rotating parts ensure a working life lasting for many generations. The slight temperature-induced changes in the length of the Super Invar pendulum rod are counterbalanced by a precisely calculated, compensation tube. To prevent bigger accuracy deviations due to fluctuations in air pressure, a double aneroid capsule is added to the pendulum.
Polite restraint and modern elegance are combined in a compellingly beautiful precision timepiece that takes up all the space it requires without being intrusive.

Details include:

Case - Black varnish with a carbon inlay back panel and metal inlays. Door with magnetic catch
Glass - Anti-reflective mineral glass, U-shaped glass glued on a mitre
Mechanism - Sattler calibre 1736
Power reserve - 30 days
Weight - 3.100 g weight on pulley with jewel bearings
Pendulum - Invar pendulum Ø 8 mm, with temperature and air-pressure compensation due to it's twin barometer chambers
Ball bearings - 11 precision ball bearings
Jewel bearings - 6 Jewel bearings and 2 agate anchor pallets
Dial - Anodised aluminium, skeletonised with visible escapement (Graham), three-dimensional hand-painted moon phase in the funnel. Numbered edition
Hands - Blue steel hands which are domed by hand
Beat rate - 3.600/h

Height: 134 cm, width: 25.5 cm, depth: 12.5 cm