Somerville’s Wilhelm Seam Crafts Leather Goods That Last | SCOUTV Episode #5

wilhelm seamJason Jammallo launched the leather goods company Wilhelm Seam earlier this year; he hand-stitches everything out of a spare bedroom in his Somerville apartment. Photos by Adrianne Mathiowetz.
Space is hard to come by in this densely-populated, 4.2-square-mile city, which is part of the reason it’s positively packed with makers (a handful of whom we’ve profiled previously) who handcraft high-quality goods from their homes.

One of those makers is Jason Jammallo, who you’ll meet in this episode of SCOUTV. Earlier this year, he founded Wilhelm Seam, a leather goods company he operates out of a spare bedroom in his Somerville apartment.

Jason Jammallo’s obsession with leather started with a striking pair of leather boots he just had to get his hands—or more accurately, feet—on. He bought a similar pair instead, regretted it, and bought the boots he really wanted shortly thereafter.

Eventually, Jammallo, who has always had a passion for lasting, quality goods, started making small leather items like wallets and keychains for friends and family members. As more friends, friends of friends—and their friends—started asking him where and how they could get their own, he decided to launch his own line: Wilhelm Seam.

According to Jammallo, many people in the area have been interested in his company specifically because the products are handmade in Somerville.

“I also like to think that it’s high quality,” Jammallo says modestly, “but I think that people are really buying local-made products.”

Jammallo enjoys working with leather because of what he calls the “repetition in perfection” of exploring different techniques. But what he really loves is the opportunity for creativity that comes from designing new things, and that’s part of the reason Wilhelm Seam will soon expand into new, bigger items like bags (and some as-of-yet secret products).

“Really, though, I want to keep this as organic as possible,” Jammallo says. “This is not my full-time job, I’m doing this on the side in my free time … it’s not all about sell sell sell. If people are into it, then I’m psyched.”

You can learn more about Wilhelm Seam on the company’s website,, or shoot Jammallo an email directly at You can also follow along on Instagram, where Jammallo shares shots of existing products and prototypes alongside information about upcoming makers markets where you’ll be able to get your hands on Wilhelm Seam wares. And Loyal Supply Co. in Union Square, a shop whose owners share Jammallo’s made-to-last ethos, just started carrying a few Wilhelm Seam products as well.

“I want Wilhelm Seam to be something bigger than what the actual product is,” Jammallo says simply, reflecting back to a time when people would purchase a watch or a piece of jewelry—or even a car—that they’d cherish and eventually pass down to their children and their children’s children. “I want Wilhelm Seam to fit into that space.”

SCOUTV is a brand new multimedia collaboration between Scout Somerville and our friends at SCATV that brings the stories in each print edition of Scout to life with video and audio. You can find more installments in the series here.