TONA MOD - ARCTIC RACER

The Tona Mod Arctic Racer brings a clean, high-contrast aesthetic to the chronograph-style Seiko Mod segment. Inspired by the precision-timing instruments of motorsport, the Arctic Racer pairs an ice-cold palette with a tachymeter bezel and a 40 mm stainless steel case built for daily use. At its heart is the Seiko VK63 meca-quartz movement — a hybrid that delivers the crisp, mechanical-feel chronograph action of a snap-reset hand, combined with the long-term accuracy of a quartz oscillator. Hand-assembled by MedoMods in Germany.

Specifications

• 40 mm stainless steel case — compact and proportional, suited for most wrist sizes
• Seiko VK63 meca-quartz movement — quartz accuracy with a satisfying mechanical-feel chronograph action
• Sapphire crystal with Super-LumiNova — scratch-resistant and readable in the dark
• Screw-down crown & 5 ATM water resistance — reliable protection for everyday situations
• Tachymeter bezel & chronograph function — measure speed or elapsed time at a glance
• 904L stainless steel bracelet — adjustable 14.5–22 cm, 20 mm lug width, butterfly clasp

The Meca-Quartz Advantage

Unlike a fully mechanical chronograph, the VK63 never needs regulation and holds its accuracy indefinitely without servicing. Unlike a standard quartz, the chronograph hand sweeps and resets with a mechanical snap — making operation feel engaging and intentional rather than digital. For a daily-driver chronograph that just works, the VK63 is the right choice. The Arctic Racer's clean colour scheme keeps the subdials and tachymeter scale legible without visual clutter, so you can actually use the timing functions you're paying for.

Built to Last

MedoMods assembles every Tona Mod Arctic Racer by hand in Germany. The 904L steel bracelet resists corrosion better than standard 316L, and the screw-down crown ensures the 5 ATM rating holds up in real-world conditions. Order from within the EU and skip the customs fees that come with watches shipped from Asia.