The Bespoke Accessories to Covet This Season

Venice, California–based Garrett Leight (owned by the son of Oliver Peoples founder Larry Leight) offers one-on-one eyewear consultations in each of its stores—Venice, Los Angeles, San Francisco, and NYC—as well as online. The six-year-old brand, known for its fashion and celebrity following, allows customers to specify nuances from sizing to aesthetics—from millimeters across to tortoises or pinewoods, matte or polished. —Annie Davidson

At Bottega Veneta boutiques on New York City’s Madison Avenue and in Beverly Hills, 15 different handbags can be ordered custom-made, such as this crocodile leather and oxidized-silver clutch (above). Crafted at the house’s atelier in Italy’s Veneto region, the accessories—in exotic skins that vary depending on availability— come embossed with the owner’s initials. From $2,300; 800-845-6790; bottegaveneta.com.

"We start from the point that anything is possible,” says John Simonian, CEO of Richard Mille Americas. The Swiss watch brand, known for bold, none-too-quiet design and technological innovation (as well as seven-figure price tags), operates a discreet “unique piece” bespoke service. While there is no formal program—projects are taken on case by case—admission is costly and ultimately at Mr. Mille’s discretion. “He must give his final approval for the design and performance before it leaves the factory,” Simonian says. Here, Richard Mille’s one-of-a-kind RM 19-02 Tourbillon Fleur Ruby Princess features princess-cut rubies on the bezel and a magnolia blossom made of intricately hand-painted 18-karat-gold petals, which open and close. When they open, a flying tourbillon with a ruby-studded “stamen” actually moves up and out of the blossom. $1.6 million; richardmille.com. —Jason Sheeler

London-based Dunhill brings Savile Row tradition to leather car interiors, iPhone cases, and briefcases. The brand’s Brook case is made to order by a single artisan, is available in alligator or calfskin, and has a fully customizable interior. Cases take approximately six months, from $4,500; dunhill.com.

Pierre Hardy’s made-to-order yellow-gold, diamond, and black-jade Chaîne d’Ancre Lumière bracelet—part of the designer’s latest collection for Hermès and inspired by the brand’s Haute Bijouterie—can also be made with pink opal, lapis lazuli, or chrysoprase. $111,400; hermes.com.