Hublot Big Bang 301.CM.710.RX
The Hublot Big Bang 301.CM.710.RX takes a strap made to measure on the watch itself: the bracelet is part of the case, so no band bought by millimetres will fit.

Hublot · Big Bang
The Hublot Big Bang 301.CM.710.RX takes a strap made to measure on the watch itself: the bracelet is part of the case, so no band bought by millimetres will fit.
Have yours made at the atelier- Lug width
- integrated bracelet
- Case diameter
- 44 mm
- Reference
- 301.CM.710.RX
- Family
- Big Bang
- Case material
- Ceramica, Resina, Acciaio
- Model
- Big Bang Original 44 Ceramic / Blue / Rubber
Sizing notes
- The bracelet is drawn as part of the case, so there is no lug width to match and no catalogue band will go in. A strap is still possible: it is cut and fitted on the watch in the atelier, from the case measurements taken by hand. Why no strap fits an integrated bracelet →
Why no standard band fits this one
On the Hublot Big Bang 301.CM.710.RX the bracelet is drawn as part of the case: the first link continues the case profile instead of sitting in a gap between two lugs. There is no lug width to match, so there is no size to order, and a band bought by millimetres will not go in whatever the number.
It is not a rare way to build a watch. 187 Hublot references in the database are built this way, and across every brand it is 5.7% of the catalogue. What replaces the bracelet is a band cut to this case, shaped to close the opening the way the bracelet did.
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 Red Gold - Ceramic / Black / Rubber301.PB.131.RX
integrated - Big Bang 45 Red Gold / Ceramic / Black301.PM.1780.RX
integrated - Big Bang 45 Red Gold / Black301.PX.1180.RX
integrated