Description
The Hublot Big Bang 431.NM.1370.RX Black Rubber strap is presented as an official-reference-verified configuration. The official reference-design case size is recorded as 43 mm.
It is paired with Rubber strap. The source evidence identifies these functions or design traits: Chronograph.
Official reference evidence supports the genuine-model identity and reference-design specifications shown in the table. Replica movement details remain subject to factory confirmation and pre-shipment QC. The merchant confirms that its 1:1 Superclone follows the original design and functions. An original calibre code identifies the design replicated, not a genuine movement. Factory-specific performance details retain their evidence labels in the specifications.
This exact configuration was observed from OMF. No factory selector is added because another factory was not evidenced for the same configuration.
Specifications
| Brand | Hublot |
|---|---|
| Collection / model | Big Bang |
| Model family verification | Official model-family source verified |
| Official full reference | 431.NM.1370.RX |
| Model / reference verification | Exact official variant verified |
| Official reference-design case size | 43 mm |
| Official reference-design case colour | Black |
| Official reference-design bracelet / strap | Rubber strap |
| Functions / design traits | Chronograph |
| Supplier-reported power reserve | 72 hour |
| Observed factory availability | OMF |



























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