Brellum Duobox 39 TC Moonphase Chronometer
ReviewBrellum

Brellum Duobox 39 TC Moonphase Chronometer

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At a glance
Case size
39mm
Lug-to-lug
48mm
Thickness
15.2mm (including crystals)
Case material
316L stainless steel
Movement
Brellum BR-751 automatic chronometer (Valjoux 7751 base)
Power reserve
46-hour
Water resistance
100m
Crystal
Domed box-shaped sapphire
Dial
Blue sunray finish
Strap
Stainless-steel bracelet and handmade calf leather strap
Limited
46 pieces
Availability
Exclusively through brellum.swiss
The brief

Brellum has introduced the Duobox 39 TC Moonphase Chronometer, a new release that brings a triple calendar and moonphase complication into a more compact 39mm case. This model features a 12-hour chronograph and a COSC-certified automatic movement, building upon the brand's established Duobox design.

  • Limited to 46 pieces
  • Price: CHF 3,600 (excl. VAT)
Across the sources

The 39mm steel case measures 15.2mm in total thickness, with the case itself being 11.7mm without the crystals, and features a combination of brushed and polished surfaces.

Monochrome Watches

The dial has a blue sunray finish, multi-level construction, and diamond-cut Roman numerals and hands with Super-LumiNova.

Monochrome Watches

Complications include day and month displays at 12 o'clock within the 30-minute chronograph counter, a peripheral date scale with a central pointer, small seconds with a day/night indicator at 9 o'clock, and a 12-hour chronograph counter with a moonphase displ

Monochrome Watches

The movement is COSC-certified, runs at 28,800 vibrations/hour, and features Perlage, Geneva stripes, blue screws, and a 4N-coated rotor with a moon-inspired design, individually numbered.

Monochrome Watches

The watch comes with a steel bracelet and an additional handmade calf leather strap in black or brown.

Monochrome Watches
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