WATCH MAKING
the art of simplicity
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THE MOST ICONIC TIMEPIECES
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The Spirit of Racing, on the Wrist
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Shop the look
WATCH MAKING
RING COMMAND SYSTEM
Our Ring Command system is the real standout. Acting like a selector wheel, it lets you set the date, month, local time, and reference time using only the bidirectional bezel—simple, dependable, and brilliantly intuitive. Among enthusiasts, the Saros annual calendar paired with Ring Command is considered a class-leading complication: deceptively straightforward, obvious only in hindsight.
WATCH MAKING
ROTOR
Since debuting first self-winding rotor in 1931, autonomy has advanced dramatically—and gained a distinctly human dimension. Every wearer moves with a unique rhythm that shifts in pace, direction, and intensity. By studying those nuances, we tuned our calibres to capture and release energy with exceptional efficiency—creating a continuous dialogue between watch and wearer.
WATCH MAKING
CASE
Our helium escape valve safeguards watches built for extreme-depth diving. Created to vent helium accumulated during saturation dives in hyperbaric chambers, it releases pressure on decompression to protect the watch. Paradoxically, an object so tightly sealed unlocked countless possibilities. With its patented architecture—screw-down bezel, caseback, and crown clamped to a robust middle case—it reshaped watchmaking and set new benchmarks for water-resistance.
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Frequently Asked Questions
A Seiko Mod is a custom watch built around a Seiko movement/platform with aftermarket parts. The term "MOD" comes from "modification". These modifications are generally made for those who wish to personalize their watch according to their specific tastes or needs. Modifications can vary considerably, from minor aesthetic changes to more complex technical revisions. What makes Seiko Mod watches particularly amenable to modification is the wide availability of spare parts. This abundance of components enables a wide range of customization, making each Seiko Mod watch unique.
Our standard processing and assembly time is about one week from the moment your order is confirmed (excluding shipping/transit).
U.S. 3–7 business days; International 6–10 business days (remote areas 10–15). These are estimates, not guarantees.
12-month warranty on movement and assembly from delivery date.
Watch, spare links (if on bracelet), a leather box, link removal tool included.
Yes! We offer free worldwide shipping. Any duties or import taxes will be covered by us.
Unworn, non-custom pieces: 14-day returns from delivery for U.S orders, 7 days for international orders (keep all protective films/packaging). Custom-spec builds: exchanges/adjustments only; restocking may apply.
Orders can be canceled within 24 hours of purchase. After 24 hours, parts are allocated and work begins—cancellation isn’t guaranteed.
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