With the ATUM range reserve Grossmann presents the combination of the ATUM model with the caliber 100.2. The small complication of the gear reserve sets an unmistakable accent in the perfectly reduced appearance of the watch. Its precise minutiae and hand-made hand-made pointers are reminiscent of the 19th century precision instruments. At the same time the two-color, bar-shaped display in the dial shows the ATUM range as a modern example of pure watchmaking.
The caliber 100.2 includes some of the most prominent proprietary developments of the manufactory, such as the Grossmann's balance, the modified Glashütter locking mechanism and the Grossmann manual lift with pushers. The gear reserve display is controlled via a slimly designed crown-wheel differential gearbox. According to the Glashütter watch clocks, it connects the spring house and the ratchet wheel with the gear reserve indicator. Via a bridge shaft with satellite wheel, it translates the opposite rotation movements from the winding and running of the clockwork to the gear reserve display. In the case of a full stroke, the visible bar in the cutout is white and becomes increasingly red during the course of the movement.
Specifications
The ATUM gear reserve appears in rose gold and white gold with a dial in Argenté
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