Can't remember title/author of short story about man who sells his soul

[Mac]

to satan for a stopwatch? From a short story anthology. A man sells his soul to satan for a stopwatch. The deal is when he stops the watch, time will stop, and the man can live forever in that moment. He goes through life tempted several times to stop the watch, with his girlfriend, or later his son, but each time he waits for an even happier moment. His life goes downhill, until he's a drunk old bum who goes out back of a bar, falls on some railroad tracks and can't get up, and he's laying there with the train bearing down on him, agonizing over whether to stop the watch and live forever in that horrible moment or to let the train kill him and go to hell. Once again he waits too long and is killed. The train stops and the devil pulls the man into a passenger car, with all the other souls on their way to hell. He gloats, like, oh, I knew you'd never push it, now give it back. The man pushes the button so he'll live forever on the train with all the other sinners. Anyone recognize? I'd love to find it again!
From a short story anthology. A man sells his soul to satan for a stopwatch. The deal is he can stop the watch once, time will stop, and the man can live forever in that moment. He's tempted several times to stop the watch, with his girlfriend, or later his son, but each time he waits for an even happier moment. His life goes downhill, until he's a drunk old bum who goes out back of a bar, falls on some railroad tracks and can't get up. He's laying there with the train bearing down on him, agonizing over whether to stop the watch and live forever in that horrible moment or let the train kill him and go to hell. Once again he waits too long and is killed. The train stops and the devil pulls the man into a passenger car with all the other souls on their way to hell. He gloats, oh, I knew you'd never push it, now give it back. The man pushes the button so he'll live forever on the train with all the other sinners. Anyone recognize? I'd love to find it again! Short story- NOT Twilight Zone
Sorry for copying the whole thing over- basically the guy can only stop the watch once, not over and over, and I'm SURE it's a short story, not Twilight Zone, because I saw that one too. Good, but not what I'm looking for.