diff --git a/src/shimmers/sketches/twelve_clocks.cljs b/src/shimmers/sketches/twelve_clocks.cljs
index f23557bb6..de2906989 100644
--- a/src/shimmers/sketches/twelve_clocks.cljs
+++ b/src/shimmers/sketches/twelve_clocks.cljs
@@ -35,7 +35,7 @@
                     (+ angle (* 2.5 time)
                        (* 0.3 step (eq/unit-sin time))
                        (Math/sin (+ angle (* 0.5 time)))))]
-    (q/stroke-weight (+ 1.5 (math/sin (+ angle (* 0.1 time)))))
+    (q/stroke-weight (+ 1.75 (* 1.25 (math/sin (+ angle (* -0.15 step) (* (/ 1 60) time))))))
     (q/line a b)
     (q/line b c)
     (q/line c d)))