DIVER STYLE
Built for adventure
A versatile diver-inspired automatic, ready to make your own.
Configure this
Crafted in progress. Step by step.
Every custom timepiece is assembled, tested, and prepared with precision before shipping.
water resistant 3ATM
For daily worry-free wear
01 / 07
YOUR WATCH. YOUR WAY.
Find your perfect watch.
Seven quick questions. A watch that feels like yours.
Takes around 60 secondsCURATED FOR YOU
Your watch matches.
Based on your answers, these watches are worth a closer look.
ALMOST THERE
Get watch updates
Subscribe for updates from Circa Watch Laboratories. Your recommended watches are shown above.
Elevated Timepieces
At Circa Watch Labs, we believe a watch is more than a way to tell time—it’s a reflection of character and taste. Our exclusive Seiko Mods feature premium Seiko TMI NH or VK movements and other Japanese calibers.
Each piece can be personalized with custom dial logos or engraving, offering a distinctive alternative to wearing your retail watch.
Featured collection
LIMITED EDITION SEIKO MOD WATCHES
SeikoJust DJ mod 'who cares I'm already late' watch
Sale price$259.00 USD
Regular price$334.00 USD
Santo Mod Santos style skeleton watch rose gold
Sale price$259.00 USD
Regular price$389.00 USD
Nautiko mod skeleton watch silver
Sale price$362.00 USD
Regular price$389.00 USD
Santo Mod Santos style watch 'f*ck 9-5' limited edition
Sale price$259.00 USD
Regular price$389.00 USD
Need help?
Frequently Asked Questions
Yes, we offer a 1-year in-house guarantee on the movement of our watches. However, if the watch is altered in ways that affect the movement, such as changes to the crown, glass, or bezel which impact and touch the movement, the warranty may then become void.
All of our watch mods use authentic Seiko TMI movements or japanese calibres. The external mod parts like cases, bezels, and dials are high-quality aftermarket components selected to ensure both durability and a premium finish. Some of our other watches use Miyota or other Japanese movements
The entire process from assembly to shipping takes about 3-5 days sooner if the parts are in stock for your watch. Once your watch is assembled and your order is processed, which typically takes 3-5 days, it is shipped out by our shipping partners and usually arrives within 7-12 working days.
Our watch mods are assembled with precision and care to ensure water resistance under standard daily conditions. However, we recommend avoiding full submersion or high-pressure water exposure, as modded parts may vary in resistance from factory standards.
If you experience any issues with your watch mod, please contact us through our website's contact form with your order # or through our customer service chat. If the problem pertains to the movement and falls under our guarantee, we will arrange a replacement. For other unrelated issues, transport costs may be applied.
We accept various payment methods including Apple Pay, Google Pay, Crypto and most major debit and credit cards such as Visa, Mastercard, AMEX, Discovery and JBC.
We deliver to most countries worldwide, except North Korea, North Africa and Russia. We offer free shipping with our shipping partner's in HK, ensuring that your watch reaches you securely.
At CIRCA WATCH LABS, we offer a variety of homage Seiko mod styles for sale such as DAYDATE, NAUTILUS, DATEJUST and SANTOS MODS. Each watch is made using TMI movements and can be customized with various aftermarket dials, bezels, and straps to suit your needs.
Built to order
Find your starting point
Choose a style to begin. Every watch can be made your own.
CLASSIC STYLE
Everyday refinement
Timeless proportions with your choice of dial and finish.
Configure this
LADIES WATCHES
Made for her
Refined proportions, custom details and everyday versatility.
Configure this
