Hublot · Big Bang
Strap for Big Bang Original 44 Stainless Steel / Blue / Alligator
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.7170.LR
FamilyBig Bang
MovementHublot caliber HUB4100 hours, minutes, small seconds | date | Chronograph
CaseStainless Steel
Straps for the Big Bang 301.SX.7170.LR
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.7170.LR, seen from the bench
The Hublot Big Bang Original 44 Stainless Steel features the in-house HUB4100 automatic movement with hours, minutes, small seconds, date and chronograph functions. The 44mm stainless steel case houses a polished and satin bezel with multi-cut sides and screw-down caseback, designed for durability without sacrificing refinement. The 24mm lug width is specific to this Big Bang 44mm architecture and not interchangeable with 42mm or 45mm variants. The watch embodies Hublot's Art of Fusion philosophy, merging industrial materials with haute horlogerie craftsmanship since its 2005 launch.
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