Description
MOVEMENT
The Zeitwinkel caliber ZW0103 is a mechanical manufacture movement with automatic winding and a semi-integrated complication for the date display. We developed it especially for our 273 series watches and manufacture it in small-quantity lots in the Swiss Jura with high precision machinery and meticulous horological diligence.
Based on our Zeitwinkel caliber ZW0102, we have added a self-developed complication for displaying the remaining running time and the date. We hold a patent for the special technical solution for the large date display at the 11 o’ clock position. The running time of the movement is 72 hours.
The movement has the substantial diameter of 30.4 mm, 49 bearing jewels, a total of 387 components, a frequency of 28,800 oscillations, a Glucydur balance and a robust three-quarter plate that plays a significant role in the mechanical stability of the movement. All plates and bridges of the mechanism as well as of the semi-integrated complication are made of German silver, chamfered and hand-decorated.
CASE
The casing for our Zeitwinkel model 273° was developed in precise accordance with in-house caliber ZW0103.
It is constructed of 1.4435 steel alloy which has a high resistance to intercrystalline corrosion and non-oxidized acids, so it is particularly suited for products that are in continuous contact with skin.
To attain the characteristic shaping, each watch case is prefabricated using precision machinery. We then complete the construction primarily by hand. In this process, 26 parts are assembled in more than 80 individual steps.
The interplay of polished surfaces with strikingly structured, precisely worked areas provides every Zeitwinkel watch with its distinctive appearance. With a diameter of 42.5 mm, the casing has an elegant and well-proportioned appearance. It is water resistant up to a tested pressure of five bar.
GLASS
We use sapphire glass on both the front and back sides of our timepieces. Sapphire is extremely hard and scratch-resistant and ideally suited for use in high-quality timepieces.
The convex lunette crystal has multiple anti-reflection coatings on the inside so that the hands do not reflect on the interior surface and because a coating on the outside of the crystal could wear down. The case large back glass is flat and equipped with an anti-reflection coating on the inside as well.
As a result, the time can always be easily read even under extreme lighting conditions. Both front crystal and back plate glass are tightly inserted into the casing of the watch, using an elaborate sealing system.
CROWN
Due to its twelve grooves and its large diameter, the crown is very easy to grip when you set the functions of your watch. The surface is polished, but is kept matte surrounding the raised Zeitwinkel logo.
Screwed-down crowns are often difficult to handle, so we decided to use a multi-stage sealing system with dual O-rings. Even when the crown is raised, water cannot enter the valuable inner workings of your Zeitwinkel watch.
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