TONA MOD - REDLINE

The Tona Mod Redline takes the proven Tona chronograph platform and pushes it into pure motorsport territory. The red accent — the defining detail that gives this Seiko Mod its name — cuts through the dial and subdials the way a redline marker cuts through a rev counter: a visual cue you can't ignore. If the Sky Striker leans aviation, the Redline goes flat-out circuit. Same 40 mm stainless steel case, same hand-built precision from MedoMods in Germany, entirely different energy and character on the wrist.

Movement & Chronograph

The Seiko VK63 meca-quartz movement delivers the sweep of a mechanical seconds hand with the set-and-forget accuracy of quartz. Chronograph pushers engage with a mechanical click and return crisply — there is no digital lag here. Start, stop, reset: three actions, one lap time. The tachymeter bezel lets you read average speed directly off the ring without a calculator.

Construction

• 40 mm stainless steel case — compact enough for everyday wear, bold enough to stand out
• Seiko VK63 meca-quartz movement — smooth sweep seconds, mechanical chronograph feel
• Sapphire crystal with Super-LumiNova — scratch-resistant, legible in low light
• Screw-down crown & 5 ATM water resistance — splash-proof security for daily use
• Tachymeter bezel & chronograph function — speed and elapsed-time measurement on the wrist
• 904L stainless steel bracelet — adjustable 14.5–22 cm, 20 mm lug width

Handmade at MedoMods

Every Redline is assembled by hand in Germany by MedoMods, tested individually before it ships. EU shipping means no customs charges for European buyers in Germany, Austria, or Switzerland — what you see at checkout is what you pay. The Tona Mod Redline is a chronograph Seiko Mod built for people who know exactly what they want on the wrist and refuse to compromise on either style or mechanics.