Marathon Mechanical General Purpose Field Watch with a sapphire crystal, tritium illumination. #WW194003SS
General Purpose Mechanical with Tritium (GPM) Stainless Steel - 39mm (Case to Crown) | Teddy Baldassarre
Marathon 'GPM' General Purpose Mechanical Watch Review | aBlogtoWatch
Marathon Watch WW194003SG General Purpose Mechanical (GPM) Military Field Watch with Tritium and Sapphire Glass, (34mm, Sage Green, US Gov't Markings): Marathon: Amazon.ca: Watches
Black General Purpose Mechanical (GPM) - 34mm – Marathon Watch North America
Marathon General Purpose Mechanical LE Review - Worn & Wound
Amazon.com: Marathon General Purpose Mechanical (GPM) Military Field Watch with Tritium and Sapphire Crystal (34mm, Black) WW194003BK: Marathon: Watches