Mariners and Astros Will Turn Back the Clock to 1979, by Mariners PR
New pitch clocking shortening MLB games in spring training
Padres lose another close one in opener of two-game series against Mariners - The San Diego Union-Tribune
Seattle Mariners MLB Clocks for sale
Classic Mariners Games: Turn Ahead the Clock Night — 2018, by Mariners PR
Uni Watch: Looking back at the M's future - ESPN Page 2
Remembering Turn Ahead the Clock Night with the Royals and Mariners - Royals Review
Photos: Mariners turn back the clock to 1909
Classic Mariners Games: Turn Ahead the Clock Night, by Mariners PR
The Royals unveiled their new Turn Ahead the Clock uniforms, complete with crown-style helmet
MLB to announce tweak to rules ahead of opening day
Royals, Mariners show off futuristic jerseys in “Turn Ahead the Clock Night” - Royals Review