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, entirely different energy and character on the wrist.

Movement & Chronograph

The Seiko VK63 Meca-Quartz movement delivers the sweep of a mechanical chronograph seconds hand during timing 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 chronograph seconds during timing, 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 by MedoMods, tested individually before it ships. Worldwide shipping with tracking – buyers in EU countries such as Germany or Austria pay no customs charges, so 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.

Ordering and delivery

• Every watch comes with a 2-year warranty from delivery. It covers manufacturing defects and functional problems under normal use. It doesn't cover scratches, damage from opening the watch, or water damage.
• 10–12 days after ordering
• 14-day withdrawal period. The period starts on receipt. For deliveries to the UK, US and Australia, we offer 14-day returns.