| Caliber | BRELLUM BR-750-1 Automatic Chronometer |
| Certification | Officially Chronometer Certified by the COSC |
| Decorations | Decorated with «Côtes de Genève», blue screws, oscillating weight BRELLUM |
| Power reserve | 46 hours |
| Chronograph | 1/4 second, 30 minutes, 12 hours |
| Alternance | 28'800 A/h |
| Ruby | 25 jewels |
| Functions | Hours, Minutes, Seconds, Date, Chronographe, Pulsomètre |
| Material | Stainless Steel 316L, DIN 1.4435, solid rose Gold 18K bezel |
| Crystal | Sapphire crystal BOX type both sides with anti-reflexion treatment |
| Case back | Numered exhibition case back with box sapphire crystal |
| Water resistance | 50m/5atm |
| Diametre | 41.80mm |
| Thickness | approx. 10.90mm without, 15.90 mm with sapphire crystal |
| Weight | 120g with leather strap, 170g with steel bracelet |
Dressed by a solid 18-carat gold bezel with a diamond cut finish, the Duobox Gold Edition collection will delight those who wish to combine the timeless style of the Duobox with the nobility of gold.
Its finely decorated Valjoux 7750 automatic movement is admired through its second "box" sapphire crystal and is finished with a decoration specific to the Duobox Gold Edition version.
A guarantee of absolute precision, the movement is officially chronometer-certified by the COSC, an independent certification body which issues an individual chronometry certificate with each BRELLUM watch.
