JASPER . JASPER . JASPER . JASPER . JASPER
IN WATCHMAKING. IN WATCHMAKING. IN WATCHMAKING. IN WATCHMAKING
23 July 2025
JASPER IN WATCHMAKING
A stone for warriors, artists... and dial makers.
From a few red jasper Rolexes in the Datejust and the Day-Date families to mid 80’s Patek Philippe stone dials, this opaque chalcedony has made low-key cameos in high-watchmaking.
Why? Because no two stones are alike. Each piece is a natural collage—formed by volcanic sediment, iron oxides, and time.
But don’t confuse jasper with its moody cousin: bloodstone. Both are quartz varieties, both opaque, both used on vintage dials—but while jasper leans red, yellow or brown with earthy striations, bloodstone (aka heliotrope) is usually dark green with vivid red flecks of iron oxide.
Sometimes, the two even share the stage on one dial—nature’s own surrealist composition, Piaget successfully executed this combo in the 70’s on Manchette models.
Harder to work than most stones, jasper has to be precisely sliced and polished to avoid cracking.
