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NOMOS Glashütte Tetra Clärchen (489)


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In Clärchen’s ballroom in central Berlin, the parties go on ‘til five in the morning. And have done for the past 100 years. Tetra Clärchen, in baize green with gold-plated hands, also proves itself to be following in a strong tradition—and, at the same time, at the cutting edge. The NOMOS Alpha caliber is ticking away inside it, even when other Berlin revelers have finally gone to bed.


Tetra’s typography is reminiscent of Tangente. Though without serifs, the numerals appear a tick more modern.
Gold squared: Clärchen’s hands are gold-plated (which reveals its membership of the Berlin set).
Clärchen, very confident, never needs to boast. The hand-wound Alpha caliber within keeps things in proportion.

Specification & Warranty


The Watch

Case: stainless steel, bipartite; sapphire crystal glass; size 29.5 mm by 29.5 mm; sapphire crystal glass back, height 6.5 mm; fixed with four screws

Weight: 36.0 g

Dial: lacquered

Hands: gold-plated

Water-resistant: to 3 atm

Strap: velour leather gray, lug width 18 mm

Reference number: 489


The Movement

α (Alpha)—in-house built NOMOS caliber with manual winding

Diameter: 10 ½ lines (23.3 mm)

Movement height: 2.6 mm

Power reserve: approx. 43 hours

Characteristics: decentralized seconds, stop-seconds mechanism, Glashütte three-quarter plate, 17 rubies, Glashütte stopwork, Incabloc shock protection, balance spring from Nivarox 1A, adjusted in six positions, tempered blue screws, rhodium-plated movement surfaces with Glashütte ribbing and NOMOS perlage, ratchet and crown wheel with Glashütte sunburst


2-year world-wide warranty

Q & A

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