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Erwin Sattler

Troja Opus Temporis

Troja Opus Temporis

Regular price $174,000.00 USD
Regular price Sale price $174,000.00 USD
Sale Sold out


A great pairing – the safety-loving Troja with the magnificent Opus Temporis. This combination brings together ostensibly incompatible aspects into one versatile timepiece which leaves nothing to be desired.

This masterpiece from the Erwin Sattler manufacture is not just a precision clock according to the classical definition but, with the Opus Temporis, it also has a “perpetual calendar” with three-dimensional, hand-painted moon phase. This turns in front of a funnel that is studded with ten brilliant-cut diamonds and impressively illustrates the night sky. From a technical point of view, its calculation and conversion are also fascinating, and only have to be corrected by one day every 120 years. Furthermore, this fine longcase clock delights owners with its sonorous half-hour strike.

Its character is complemented by the features of the Troja. When you press the remote control, 16 programmable watch winders move forward behind the pendulum clock. The database that comes with the clock contains the parameters for more than 8,000 wristwatch models. Each wristwatch thus receives exactly the amount of energy that is recommended by the manufacturer. A safe, which is hidden behind a closed door in the base of the clock, has drawers in which to store other collectibles and treasures such as chains, rings and manual winding wristwatches.


  • 30-day power reserve
  • Silver-plated dial with “perpetual calendar” and handpainted moon phase display, studded with brilliant-cut diamonds
  • Harmonious-sounding half-hour strike train
  • Hidden safe in the base with electronic key lock
  • 16 extendible, individually programmable watch winders
  • Equipped with the movement from the Opus Temporis
  • Watch holder variants for different strap lengths
Case - Black varnish with macassar cassette and metal inlays
Height: ≈ 87.4 in (222 cm), Width base: ≈18.7 in (47.5 cm), (watch winders extended: ≈ 28.35 in (72 cm)), Depth: 16.93 in (43 cm),
requires wall mounting at the dial height
Door with magnetic closure
Weight ≈ 551.16 lbs (250 kg)
Crystals Mineral glass
Movement Sattler calibre 2050
Power reserve 30 days
Drive Weight going train 6,800 g tungsten with pulley
with ball barings, weight strike train 6,800 g
tungsten with pulley with ball barings
Oscillator Invar pendulum Ø 12 mm, temperature and
air-pressure compensation, twin barometer
Ball bearings 48 precision ball bearings
Jewel bearings 4 in screwed-in chatons, 2 agate anchor pallets
Dial Silver-plated, quartered, three-dimensional
moon phase with 10 diamonds (0.10 ct),
funnel-shaped starry sky, perpetual calendar,
sweep second hand
Base Clock base with safe
Winders 16 precision watch winders, sideways extendable,
individually programmable via WLAN, 16 high-power motors, 12 o’clock position
Strike train Half-hour rack strike train with tubular gong,
strike train silencer
Beat rate 3.600/h = 60/min
Safe Dimensions:
- Ext.dimension: H/B/T 610/405/340 mm
- Int. dimensions: H/B/T 504/312/221 mm
- Doorway: H/B 504/265 mm
- Weight: aprox. 110 kg
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Treasures are kept safe and hidden inside a fascinating and impressive precision pendulum clock

The Troja Sonata M, a precision pendulum clock with half-hour impact mechanism and moon phase display. As an imposing grandfather clock, it can also hide the most secret treasures … In addition, the video also shows the Secunda Sonata, the counterpart as a classic precision pendulum clock for the wall.