Rolex Day-Date 18038 'Cacholong'

A study in subtlety: the Cacholong dial. Not every Day-Date seeks attention. Some radiate a quiet refinement understood only by few.

This 1987 Rolex Day-Date reference 18038 is such a watch. Among Rolex stone dials, Cacholong holds a special place. It is subtle, elusive, and rarely seen. Unlike stark white enamel, Cacholong feels warm and organic, almost alive. Its depth and subtle glow make it one of the most quietly sophisticated dials ever fitted to a Day-Date.  

Cacholong
At first glance, the dial may appear white. Look closer, and you’ll understand why aficionados appreciate it among the rarest stone dials Rolex ever made: not for bold color or dramatic texture, but for its purity and restraint. Crafted from Cacholong, a delicate variety of opal known for its soft, milky texture and cream-beige undertones, it shifts in hue with the light, never quite the same twice.

Cacholong is found in only a few places around the world, including Austria, the Czech Republic, Mongolia, and Uzbekistan. The latter believed to have inspired its name, possibly derived from the Cach River in Bukhara. It also occurs in select regions such as Iceland, Elba, and Nova Scotia. The rarity of the stone, combined with the difficulty of crafting it into a flawless dial, makes each piece unique.

This particular 'Swiss only' dial is flawless, showing no cracks, hairlines, or discoloration, which is remarkable for such a fragile mineral. Its diamond hour markers add a discreet touch of luxury, perfectly balancing the dial’s natural softness. 

Condition
The 18k yellow gold case retains its strong profile with crisp, well-defined lugs. The fluted bezel remains sharp, catching the light elegantly, while the President bracelet shows minimal stretch and excellent integrity. The overall impression is of a watch that has been worn sparingly and cared for attentively, preserving both its character and originality.

The classic Day-Date, elevated by nature’s own craftsmanship.