TONA MOD

Discover the MedoMods Seiko Daytona Style Collection – custom-built Seiko mods that combine a classic Daytona-inspired racing look with the crisp feel of a Seiko VK63 mecha-quartz chronograph movement.

Every watch in this collection is hand-assembled to order. We use high-quality third-party aftermarket (non-OEM) parts, sapphire crystal, and premium stainless steel cases and bracelets to create a sharp, daily-wear ready Seiko mod built for everyday speed and style.

Choose your perfect Daytona-style Seiko mod:

Dials: Panda, Reverse Panda, Black, White, Ice Blue, Sunburst, Arabic variants and more

Sizes: 40 mm case option

Bezels: Tachymeter bezel options (classic, modern, ceramic-style looks)

Bracelets / Straps: Oyster-style bracelets, rubber straps, or leather options

Finishes: Steel, rose gold, two-tone, and bold dial colors

All watches are powered by the Seiko TMI VK63 mecha-quartz chronograph movement (battery-powered, with a crisp mechanical chronograph feel), regulated and quality-checked before shipping. Each piece is built as a unique custom Seiko mod watch, not a mass-produced factory model.

This collection features Seiko mod watches using OEM Seiko movements and third-party aftermarket parts. These are not original Seiko or Rolex watches. MedoMods is not affiliated with, sponsored by, or endorsed by Seiko or Rolex in any way.

If you are looking for a Seiko Daytona style mod, a VK63 chronograph mod, or a clean panda / reverse panda racing build, this collection is the best place to start.