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Nuit Polaire

Traverse GMT Nuit Polaire, Ref. TR-02, seen from the front: glacier blue / obsidian ceramic bezel, obsidian lacquer dial, Moraine steel bracelet.
02 / 04Front · 1:1

Half the year, the sun does not rise.

Named for the polar night the first Traverse navigators flew through. Day hours fall into obsidian, so the only colour left on the bezel is the deep blue of a winter sky at 80° north.

CHF 17 900

Indicative price, VAT excluded

Obsidian lacquer

Dial

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In the hand

Six details, one instrument.

Fig. 02 — Ref. TR-02Overview

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00 · Overview

Nuit Polaire, at a working distance.

Choose a detail to move the camera to it, or turn the case yourself. Every marker on the model opens the same note here.

Details

Bezel and dial shown on Ref. TR-02. Calibre and bench are common to every Traverse.

01BezelThe night half in glacier blue. The day half is black ceramic.
The sapphire exhibition caseback: calibre SR-24 inside a ring engraved Sapphire Crystal, Water Resistant 100 M, Swiss Made.
02CasebackCalibre SR-24 behind sapphire. 72 hours of reserve.
A watchmaker's gloved hands setting a component into the movement with fine tweezers under bench light.
03AssemblyOne watchmaker assembles each movement, start to finish.
Macro of the obsidian lacquer dial: the faceted white-gold peak index above the SERAC signature, hour and minute hands in the foreground.
04DialObsidian lacquer, twelve coats. The peak at twelve: half polished, half lume.
05RotorOpenworked tungsten rotor winding SR-24 in both directions.

Specifications

The numbers, in full.

00 · Nuit Polaire

Reference
TR-02
Bezel insert
Glacier blue / obsidian ceramic
Dial
Obsidian lacquer
Delivered on
Moraine bracelet
Edition
Open series
Indicative price
CHF 17 900, VAT excl.

01 · Case

Diameter
40.0 mm
Thickness
12.1 mm
Lug to lug
47.6 mm
Lug width
20 mm
Material
Glacier Steel (316L VAR)
Finish
Brushed lugs, polished bevels
Water resistance
100 m / 10 bar

02 · Bezel & crystal

Bezel
Bidirectional 24 h, 48 clicks
Insert
Ceramic (ZrO₂), engraved, platinum-filled
Crystal
Sapphire, inner anti-reflective
Caseback
Sapphire exhibition
Crown
Screw-down, twin gasket

03 · Calibre SR-24

Type
Automatic GMT, jumping local hour
Frequency
28,800 vph (4 Hz)
Power reserve
72 hours
Jewels
31
Components
228
Hairspring
Silicon, free-sprung balance
Accuracy
−2 / +2 s per day

04 · Bracelet

Bracelet
Moraine, three-row steel
Clasp
Folding, 5 mm Crevasse extension
Alternatives
Vulcan rubber · Charcoal calfskin

Calibre · in-house

SR-24

Automatic, GMT with independent jumping local hour. The local hour hand jumps in one-hour steps; the red hand and the bezel keep home time.

The calibre, in detail
Power reserve
72h
28,800 vph
4Hz
Jewels
31
Components
228
Diameter · 5.9 mm high
30.4mm
Per day, tested cased
±2s

Glacier Protocol — 15 days cased, 6 positions, 3 temperatures
Côtes de Genève · Perlage · Hand-polished anglage · Blued screws · Openworked tungsten rotor

The other references

ConfiguratorStart from TR-024 bezels · 3 dials · 3 straps · 36 buildsPrivate viewingRequest a private viewingBy appointment · Le Sentier