When Miriam referenced the 328 with the froggy eye, it reminded me that my very first machine I bought for myself is the Singer 327 which does straight stitch and zigzag no cams but no blanket stitch. I have dragged this machine around with me every time I moved (in the car, because was told movers steal sewing machines, sorry movers but that was a long time ago). It has never given me the first bit of problems. I used to have it maintained about every year the first few years. Then put it aside and used when I needed. Then got involved in the vintage machines and took this one out and oiled and lubed it. Dry as a bone! I'm sure I used it that way over the years, not knowing any better. But, it drank the oil, and while I think someone said these are noisy machines, it doesn't seem very noisy to me. Maybe because I like the way it sounds (familiar). It does a nice zig zag and never had a problem with the straight stitch. I don't think I have ever changed the bulb. I see them on eBay cheap every now and then.
singer 327 image