Editorial
The Datejust 16234 is the dress Rolex that was the dress Rolex through most of the 1990s, 36mm, fluted white-gold bezel on a steel case, sapphire crystal, the caliber 3135 movement that's still considered one of the most-serviceable mechanicals Rolex ever shipped. It's the watch your father bought to retire in, and the one a lot of buyers now under-rate at exactly the moment the market has started to circle back.
Produced 1988–2006, the 16234 replaced the 16014 and pairs the caliber 3135 (introduced 1988, still in production with minor revisions) with a sapphire crystal. (Strictly speaking, late-production 16014s already had sapphire, but the 16234 is the first Datejust generation built around the 3135/sapphire combination from the start.) 36mm case, jubilee or oyster bracelet, fluted white-gold bezel; dial variants are vast, silver, champagne, slate, mother-of-pearl, with or without diamonds at the indices, Roman vs stick vs Arabic markers. Production overlapped with the 16234G (diamond-set dial). 16233 is the gold-bezel two-tone, 16238 is the yellow-gold case, but the 16234 with steel case + white-gold bezel is the canonical reference.
Common things to check: dial originality (refinished dials are common and visible on close inspection, look for crisp printing of the Rolex crown and the 'Datejust' wordmark; refinished dials often have soft edges); bezel (the fluted white-gold bezel scratches easily but doesn't damage value much when honest; a polished-flat bezel does); bracelet (the 62510H jubilee end-links match the era; later 555 jubilees fit but aren't original); service-replacement hands (luminous dots replaced with non-luminous ones is a service tell, fine, but worth knowing); the rehaut on a 16234 is NOT engraved (engraved-rehaut is post-2008 only).
