Hublot · Big Bang
Strap for Big Bang 45 Stainless Steel / Black
Takes 24 mm straps. Verified lug width, the straps that fit this model, and answers to the most common questions.
Lug width
24mm
Lug width24 mm
Case diameter44 mm
Reference301.SX.1170.RX
FamilyBig Bang
MovementHublot caliber HUB4100 hours, minutes, small seconds | date | Chronograph
CaseStainless Steel
Straps for the Big Bang 301.SX.1170.RX
Selected for the 24 mm lug width · workshop selection
Millenium Cognac Alligator Strap€195
Matte Blue Alligator Strap€195
Natural Calfskin Rally Strap€110
Hammered Calfskin Strap Light Blue€98
Vintage Olive Green Calf Leather Watch Strap€80
The Big Bang 301.SX.1170.RX, seen from the bench
The Hublot Big Bang 301.SX.1170.RX is a stainless steel chronograph launched in 2005, featuring a 44mm case with signature six H-screws on the bezel and a 24mm lug width. Powered by the HUB4100 automatic movement with hours, minutes, small seconds, date and chronograph functions, the watch embodies the Art of Fusion philosophy through its industrial aesthetic. Sapphire crystals with anti-reflective coating on both sides ensure legibility, while 100 meters water resistance provides robust everyday durability. The 24mm strap measurement is precise and non-interchangeable with adjacent sizes to maintain proper visual alignment and mechanical integrity.
The next step
The right strap isn't chosen. It is built, together.
From the atelier appointment to delivery, every step is made for those who know that things done well take time. Rare leathers, one piece at a time, eighteen months of warranty.
Request an appointment →Casati Milano · Via XX Settembre 15, Milan · by appointment only