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One free scan finds every outdated or missing driver and matches the right update for your exact hardware.Free scan · exact hardware matchThe Brellum Duobox 39 Ice Blue Mother-of-Pearl Chronometer pairs a 39.50 mm stainless-steel case with a 48 mm lug-to-lug span and a notably tall 15.30 mm profile when its domed box sapphire crystals are included. Its ice-blue, multi-level mother-of-pearl dial and automatic chronograph set it apart, while a supplied bracelet and white leather strap give buyers two ways to wear it. Brellum lists reference DB.CH.946 as a 46-piece limited edition at CHF 3,190; price and availability can change.
What is the Brellum Duobox 39 Ice Blue?
Reference DB.CH.946 is Brellum’s Duobox 39 Ice Blue Mother of Pearl LE Chronometer. The company says the edition is limited to 46 pieces worldwide. Its distinctive combination is a compact case diameter, box-shaped sapphire crystals, and a layered ice-blue mother-of-pearl dial. Brellum describes the design as suitable for women’s and men’s wrists; that is the brand’s positioning, not a guarantee of fit.
The specifications below are manufacturer-reported rather than independent measurements. Brellum’s product listing is the primary source for the model’s dimensions, functions, materials and package contents: Brellum DB.CH.946 product listing.
Specifications at a glance
| Specification | Brellum DB.CH.946 |
|---|---|
| Reference | DB.CH.946 |
| Edition | 46 pieces worldwide, according to Brellum |
| Case material | 316L stainless steel |
| Diameter | 39.50 mm |
| Lug to lug | 48 mm |
| Thickness | 15.30 mm including crystals; 11.05 mm without crystals |
| Water resistance | 100 m, stated by Brellum |
| Dial | Ice-blue, multi-level mother-of-pearl |
| Crystals | Domed box sapphire front and back; Brellum lists anti-reflective coatings and an anti-UV coating on the dial side |
| Movement | BR-110 automatic chronograph on a La Joux-Perret base; 26 jewels; 28,800 A/h; 60-hour power reserve |
| Certification | COSC chronometer certification, according to Brellum; certificate delivered with the watch |
| Functions | Hours, minutes, seconds, date, 12-hour chronograph, stop second and pulsometer scale |
| Included straps | Stainless-steel bracelet and white leather strap with Brellum pin/buckle |
| Price shown | CHF 3,190 on Brellum’s listing; check current price and local costs |
How the case dimensions translate to wrist fit
Diameter is only part of the picture
At 39.50 mm across, the case is relatively compact by diameter, but its 48 mm lug-to-lug length is also important: that measurement describes how far the watch spans across the wrist. The 15.30 mm overall thickness includes the domed crystals; Brellum gives 11.05 mm without them. The raised crystals therefore account for a substantial part of the stated height and should not be overlooked when judging how the watch may sit beneath a cuff or feel on the wrist.
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- Automatic movement
- Scratch resistant sapphire crystal
- Case diameter: 38.5 mm
- Metal case
- Water-resistant to 500 feet (150 M)
These are published dimensions, not a fit test. Wrist shape, strap or bracelet adjustment, and personal preference all affect wear. If thickness is a concern, compare the full 15.30 mm figure rather than relying on the “39” in the model name.
Dial, crystals and legibility
The ice-blue dial is made from mother-of-pearl and arranged in multiple levels. Brellum specifies diamond-cut indexes and hands with Super-LumiNova. The sapphire crystals are fitted to both the front and back; the brand names ARdur and ARunic coatings and lists anti-reflective treatment, along with an anti-UV coating on the dial side.
Mother-of-pearl gives the dial a material character distinct from a flat painted surface, while the layered construction adds visual depth. The available product information does not establish how the dial or anti-reflective coatings perform in particular lighting conditions, so those details should be treated as material and construction specifications rather than a claim of tested legibility.
Movement, chronograph and certification
Brellum identifies the automatic movement as its BR-110, built on a La Joux-Perret base. The listed configuration includes a column wheel, 26 jewels, a frequency of 28,800 A/h and a 60-hour power reserve. Its functions include a 12-hour chronograph, date, stop second and pulsometer scale, in addition to hours, minutes and seconds.
Rank #3
- Omega Constellation Co-Axial Automatic Chronometer Diamond White Mother of Pearl Dial Ladies Watch 123.18.35.20.55.001
The underlying La Joux-Perret caliber designation is inconsistent in specialist coverage: Fratello identifies it as an L100, while Monochrome calls it an L110. Brellum’s own listing does not specify either number, so the more precise wording supported by the brand is “La Joux-Perret base.” See Fratello’s report and Monochrome’s launch coverage for the differing labels.
Brellum says the movement is COSC-certified and that a certificate is supplied with the watch. That is a certification claim, not an independent timing test of this particular example; no measured accuracy result for this article is available.
Rank #4
- Stainless Steel case
- 27mm case dimension
- Mother of Pearl dial
- Stainless Steel Brushed band
- Automatic - Chronometer movement
Everyday-use considerations and what is included
The stated 100 m water resistance, date and chronograph make this a function-rich watch on paper. A water-resistance rating alone does not establish suitability for a particular water sport or use case; follow Brellum’s guidance for the watch and its condition. The package includes a stainless-steel bracelet and a white leather strap with Brellum pin/buckle. Brellum’s listing does not state the lug width, so third-party strap compatibility should be confirmed rather than assumed.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Price, availability and limited-edition status
Brellum’s listing shows CHF 3,190 and marks the watch “Available.” The same listing indicates purchases are made in Swiss francs and foreign-currency estimates may vary. Those are time-sensitive listing details, not a guarantee of stock or the final delivered cost for a buyer elsewhere. Confirm current availability, applicable taxes, import charges and delivery terms with the seller for your location.
Best Value
- 2 year warranty (comes with a warranty card) COSC certified chronometer product.
- FREE Pick Up Service: If you need maintenance, we will provide packing materials to your designated location and arrange your watch. Once finished, the watch will be delivered to the designated location. The design of the TISSOT original box included with the
The 46-piece worldwide limit is also a statement from Brellum. It signals a small stated production run, but does not by itself establish resale value or future collectability.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
