His streak is currently the fifth longest in Major League Baseball among third basemen over the past five seasons, and is the second-longest active streak behind the 197 of Baltimore's Manny Machado.
"He has a great routine, really takes good care of himself. Those are the biggest things," manager Eric Wedge said. "And he's obviously been a very consistent contributor for us. He wants to play every day, which deserves respect in and of itself. But the reason he can play every day is because of how he goes about his business and the consistency of his play.
"You've got to have that. When you get to the point where you're playing for something this time of year and you're in the race, you've got to have guys you can pencil in every day. He's proven to be one of those guys."
Seager has played the most games of any Mariner this season, sitting out just twice so far (April 9 against the Astros and May 22 vs. the Angels).
Greg Johns is a reporter for MLB.com. Follow him on Twitter @GregJohnsMLB as well as his Mariners Musings blog. This story was not subject to the approval of Major League Baseball or its clubs.