Hublot Big Bang 301.PX.710.RX
The Hublot Big Bang 301.PX.710.RX takes a 21 mm watch band.

Hublot · Big Bang
- Lug width
- 21 mm
- Case diameter
- 44 mm
- Reference
- 301.PX.710.RX
- Family
- Big Bang
- Case material
- Acciaio
- Model
- Big Bang Original 44 Red Gold / Blue / Bracelet
Bands that fit
Cut and stitched in Milano, in the width this watch takes.
Will a strap close on your wrist?
Set for this watch: 44 mm of case and 21 mm between the lugs. Add your wrist and see where a standard strap would close.
mm
Filled in with the case diameter, which is what we hold for this reference. Measure the watch tip to tip for the exact answer: it is usually a few mm more.
Enter your wrist measurement to see whether a standard 75/115 mm strap closes on you, and where.
Sizing notes
- 21 mm is the gap between the lugs, so a 21 mm band goes in without adapters. Whether it sits flush against a 44 mm case depends on how that case is shaped.
- 21 mm is an odd size: most ready-made bands are made in even widths, so this reference needs one cut to measure or a band that runs in odd sizes. Why some watches take odd sizes →
- Inside the Big Bang family the lug width is not one number: it runs 20, 21, 24 mm. This reference is the 21 mm one, so a band bought for another Big Bang may not fit it. Why the size changes inside a family →
- 21 mm is not a common size: only 2,956 of the 41,485 watches measured take it (7.1%), so ready-made choice at this width is narrower than at 20 or 22 mm. Every watch that takes 21 mm →
Other Big Bang references
- Big Bang Original 44 Black Magic301.CI.1770.RX
integrated - Big Bang 45 Ceramic / Blue301.CI.7170.LR
integrated - Big Bang Original 44 Black Magic301.CM.130.RX
24 mm - Big Bang Original 44 Ceramic / Blue / Rubber301.CM.710.RX
integrated - Big Bang Original 44 Red Gold - Ceramic / Black / Rubber301.PB.131.RX
integrated - Big Bang 45 Red Gold / Ceramic / Black301.PM.1780.RX
integrated
Matte Black Alligator Strap
Matte Dark Gray Alligator Strap
Matte Blue Alligator Strap
Vintage Olive Green Calf Leather Watch Strap
Hammered Black Calfskin Strap — Ecru Stitching
