A stainless steel dive watch with a black dial, centered against a dark, moody forest and rock background.

THE ODYSSEY

BUILT FOR EVERYTHING

$895

FOUNDER PRICING · LIMITED TO 100 WATCHES

CURRENTLY IN PRODUCTION · ESTIMATED DELIVERY JANUARY 2027

Interest-free payment options are available at checkout.

300M WATER RESISTANCE
SAPPHIRE CRYSTAL
SWISS X1 C3 LUME
MIYOTA 9015 AUTOMATIC
RESERVE YOUR ODYSSEY

DESIGNED FROM SCRATCH

The case, dial, bezel, and hour and minute hands are original designs — drawn and engineered specifically for Tertia, not selected from an existing catalog.

See the full design story →
A stainless steel analog watch with a black dial and bezel sits on a dark wooden desk next to a laptop, a white mug, and a pen.

ABOUT TERTIA

Tertia is an independent, owner-operated watch company based in Virginia. I handle the decisions that take the Odyssey from a sketch to a finished watch — the design, the specifications, and the final quality control before it ships. Final assembly, regulation, and quality control is completed in the USA.

If you have any questions, you can reach me directly.

THE STANDARD

A watch meant to go wherever you do needs to handle water, impact, and daily wear without asking you to baby it. That standard shaped every part of the Odyssey, from the case to the movement.

When you put it on, the reaction should be simple:

This makes sense.

Built for everything means that every Odyssey ships as a Full Kit - quick detach bracelet and FKM strap, spring bars, and a screwdriver to size it to your wrist the day it arrives.

RESERVE YOUR ODYSSEY →