Octanis Sigma GMT 42 - Founders Edition - Nautical Twilight

Where the stars meet the sea: A deep blue dial captures the open water, while the orange horizon line provides the perfect fix for the celestial traveler.

When you're transitioning through time zones, you need gear that adapts instantly. We engineered this watch around the Miyota 9075 True GMT movement. Purpose-built for the frequent flyer, it gives you an independent local hour hand that clicks seamlessly into place as you land, leaving your home time completely undisturbed.

To maximize utility without adding external bulk or weak points, we integrated an internal 24-hour bezel. Protected safely beneath the scratch-resistant crystal and controlled via an internal geared crown, it allows you to calculate a third time zone instantaneously. No accidental knocks, no chipped bezel inserts—just pure, reliable tool-watch utility.

Included with each piece are:

• 3-watch travel roll
• Extra FKM rubber strap (color matched to the orange on the internal bezel)
• Warranty card
• Octanis sticker

The stainless-steel bracelet's buckle features a quick adjust feature for quick adjustments as your wrist shrinks and swells throughout the day!

This item is currently available for pre-order. Shipping is planned to begin in early August of 2026.  

A Note From Our Founder

Before GPS, navigators trusted the octant — a precision instrument that demanded absolute accuracy, because lives depended on it. The Sigma was built in that same spirit: over-engineered where it counts, uncompromising where it matters. This is not a catalog watch. Each of the 120 units in this initial run was personally inspected and regulated by hand — because that's the only standard worth keeping.