Hublot Big Bang

Most Hublot Big Bang references take a 24 mm watch strap: 17 of 34. The lug width follows the case size: 41 mm case → 21 mm, 42 mm case → 21 mm, 44 mm case → 24 mm and 45 mm case → 24 mm.

Shop 20 mm Shop 21 mm Shop 24 mm

Hublot Big Bang lug width by case size

34 references measured; 86 more have an integrated bracelet. Updated 2026-10-29.

Case	Lug width	References	Watch strap attachment	For example
39 mm	21 mm	1	—	465.WX.897T.LR.0919
41 mm	21 mm · 24 mm on 1	3	—	341.SX.130.RX.174, 341.SX.7170.LR.1204
42 mm	21 mm · 20 mm on 1 · 24 mm on 1	4	—	441.JP.4890.RT, 441.OM.1180.RX
44 mm	24 mm · 20 mm on 1 · 21 mm on 1	7	—	301.CM.130.RX, 301.SX.1170.RX, 301.SX.1170.RX.1104
45 mm	24 mm · 21 mm on 7 · 20 mm on 2	19	—	403.OM.0123.RX, 411.CI.1170.CI, 411.HX.1170.HX

References that take a different watch strap

341.SX.130.RX.114: 24 mm, not the 21 mm of most 41 mm cases
441.NE.2010.RW.1104: 24 mm, not the 21 mm of most 42 mm cases
441.NX.1170.RX.1704: 20 mm, not the 21 mm of most 42 mm cases
301.PX.710.RX: 21 mm, not the 24 mm of most 44 mm cases
301.SB.131.RX: 20 mm, not the 24 mm of most 44 mm cases
401.CX.1123.VR: 21 mm, not the 24 mm of most 45 mm cases
411.ES.5119.RX: 21 mm, not the 24 mm of most 45 mm cases
411.JX.1170.RX: 21 mm, not the 24 mm of most 45 mm cases
411.JX.4802.RT.1904: 21 mm, not the 24 mm of most 45 mm cases
411.NM.1170.NM: 20 mm, not the 24 mm of most 45 mm cases
411.NX.1170.RX: 20 mm, not the 24 mm of most 45 mm cases
411.NX.1170.RX.1704: 21 mm, not the 24 mm of most 45 mm cases
411.OX.1180.RX.1104: 21 mm, not the 24 mm of most 45 mm cases
411.OX.1180.RX.1704: 21 mm, not the 24 mm of most 45 mm cases

Questions about the Hublot Big Bang

Can two Hublot Big Bang watches with a 45 mm case take different watch straps?

Yes. Of the 19 Hublot Big Bang references with a 45 mm case, 10 take 24 mm, 7 take 21 mm and 2 take 20 mm. The reference number decides, not the case size alone.

Every Hublot Big Bang reference

Other Hublot families

Inside each one the lug width often changes: it is the reference that decides.

All Hublot families → · Why the size changes inside a family →