Rolex Datejust 31 Yellow Gold — Diamond Bezel & Mother-of-Pearl Diamond Dial | Ref. 178158

Reference 178158 is a 31mm Datejust built entirely in yellow gold, featuring a 48-stone diamond bezel and a mother-of-pearl dial set with diamond indices. This is among the more richly specified configurations in the 31mm Datejust range — solid yellow gold case, diamond bezel, and a diamond-set dial combine to produce a watch that functions as a serious jewellery piece underpinned by Rolex's manufacturing standards. The 31mm case diameter occupies the midsize position in the Datejust lineup, appropriate for wearers seeking slightly more presence than the 28mm Lady-Datejust.

The Calibre 2235, used across the 31mm Datejust 178xxx family, is a self-winding movement developed specifically for mid-sized Rolex models. It incorporates a Parachrom blue hairspring, Paraflex shock absorbers, and a bidirectional self-winding rotor, together delivering reliability and rate stability across many years of use. The yellow gold case and integrated bracelet add substantial warmth to the iridescent mother-of-pearl, creating a cohesive material palette.

Collectors interested in Ref. 178158 should approach it as a factory jewellery watch with Rolex provenance — the combination of yellow gold case, 48-diamond bezel, and paved mother-of-pearl dial is not achievable through aftermarket modification without surrendering authenticity and resale value. This reference is genuinely uncommon in the secondary market in well-preserved condition. Box and papers materially affect value here, as the original purchase documentation reinforces the provenance of the diamond-set components.