Blog
Seiko mod guides & stories
Tutorials, FAQ, comparisons — everything about modified Seiko watches.
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Explorer-style Seiko mods: 3-6-9 or GMT?
Explorer-style Seiko mods: compare a black 3-6-9 dial with GMT models and a 24-hour bezel. See how three MedoMods watches differ before you choose.
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Miyota movements: 9075 GMT and 90S5 open heart
Miyota 9075 and 90S5: compare true GMT and open-heart functions, published specifications, hand winding and stop seconds for your watch project.
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NH38 movement: technical guide
NH38 movement: open heart without a calendar, with hand winding and stop seconds. Compare TMI specifications and find MedoMods models fitted with NH38.
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Compare Seiko movements
Compare Seiko movements by function: automatic date, day-date, open heart, GMT and meca-quartz. See TMI specifications and actual MedoMods examples.
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How to measure an automatic watch's daily rate
A practical way to observe an automatic watch's daily rate, distinguish a pattern from one reading, and know when to consult a professional.
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Choosing a mod watch as a gift: a practical guide
Choose a ready-made mod watch as a gift by comparing style, size, dial, bracelet and the right level of surprise.
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Buying a Day-Date Mod: Check the Calendar Display First
Choose a day-date mod by the calendar information you will use, readable dial layout and the exact product variant rather than its style name.
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Jubilee, Oyster or President? A Mod-Watch Bracelet Guide
Compare Jubilee, Oyster and President bracelet styles by link layout, visual character and the specific checks that matter before choosing a mod watch.
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Best DIY Watch Kit 2026 – What It Must Include (And When to Skip It)
What separates the best DIY watch kit from a bag of loose parts? The component checklist, kit vs configurator-built compared honestly, and when not to DIY.
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Best Homage Watches 2026: The Honest Guide
Compare homage watches by fit, movement, usable functions and purchase terms. A practical guide to diver, integrated-bracelet, chronograph and GMT styles.
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How to Choose a Seiko Mod Builder
A practical checklist for choosing a Seiko mod builder or parts supplier: movement, crystal, warranty, shipping and verifiable reviews.
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Best Rolex Submariner Homage: A Guide
A guide to comparing micro-brand homages and Seiko-based Sub mods by their stated components and current offers.
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How Much Does a Seiko Mod Cost? Price Breakdown 2026
How much does a Seiko mod cost? Realistic parts prices, DIY vs pre-built economics, what actually drives the price — and where finished builds start.
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NH34 Movement Explained: Seiko's True GMT for Mods
The Seiko NH34 movement explained: how the true GMT hand works, NH34 vs NH35, and which Seiko mods are built around this second-time-zone caliber.
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Miyota 9015 vs NH35 – Which Movement Should Power Your Mod?
Miyota 9015 vs NH35: compare published accuracy, frequency, movement height and the fit of the actual parts, with Miyota 8215 included.
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NH36 Movement Explained: Day-Date, Specs & Mod Compatibility
NH36 day-date movement: published TMI specifications, accuracy limits, dial compatibility, donor-watch checks and how to compare the actual model.
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Best Dive Watches: Every Price Point Compared
The best dive watches from budget to premium, including how a custom Seiko dive-mod compares on looks, price, and build.
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Grand Seiko style and Seiko mods
Grand Seiko style is a design reference. A Seiko mod is a different watch: compare its dial, case, movement and band as a complete model.
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Pepsi Watch Guide: The Blue-Red Bezel, Explained
What makes a pepsi watch iconic, the GMT heritage behind the blue-red bezel, and how to build your own pepsi GMT as a Seiko mod.
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Seiko Marinemaster: MM300 Heritage & Mods
Everything about the Seiko Marinemaster (MM300/SBDX) lineage, why it's iconic, and how to get the diver aesthetic as a custom Seiko mod.
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Are Seiko Mods Legal? Branding, Warranty and Import Checks
Buying a Seiko mod: check the actual watch, branding, seller warranty, import costs and return terms. The word mod does not certify a product.
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Best Seiko Mods Under €300: Buying Guide
Compare two current €259 Seiko mod offers and the checks to make before ordering a watch under €300.
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Is a Seiko Mod Worth It? Pros & Cons 2026
Are Seiko mods actually worth the money? We compare price, quality, resale value and everyday wearability — honestly.
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NH35 Movement Explained: Accuracy, Specs & Service
NH35 movement: TMI specifications for accuracy, power reserve and dimensions, with hand winding, stop seconds, model examples and service guidance.
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NH35 vs NH36: the only difference is the day
The NH36A adds a day wheel. The compared TMI specifications match: 27.40 mm, 21,600 vph, 24 jewels, more than 41 hours. Pick by dial layout, not by calibre.
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Seiko Mod Tools for Beginners – The Complete 2025 List
What tools do you need for your first Seiko mod build? A complete shopping list with prices, brands, and honest reasoning behind each pick.
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Seiko Sub Mod vs. Rolex Submariner: A Comparison
How do a Seiko Sub Mod and a Rolex Submariner differ in style, specification, and the buying decision?
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What Is Watch Modding? The Complete 2026 Guide
Watch modding explained: compatible parts, planning a build, documented assembly, and checks to make before buying or building.
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Are Seiko Mods Waterproof? 5 ATM Explained Honestly | MedoMods
Are Seiko mods waterproof? MedoMods watches are rated 5 ATM – here is what that means in practice, what to avoid, and how to keep your seals healthy.
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Sapphire Crystal vs Mineral Glass: What Lasts?
A practical comparison of sapphire, mineral glass, and acrylic: care, selection checks, and the crystal specified for a particular watch.
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Seiko Mod vs Fake Replica: What Should a Buyer Check?
Seiko mod, homage or replica: check the actual components, markings, seller and warranty. A movement name or disclaimer does not authenticate the whole watch.
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Build Your Own Seiko Mod – Step-by-Step Guide 2026
Configure your perfect Seiko mod from scratch: case, dial, bezel, hands, strap, movement. Every decision explained so your parts actually work together.
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How to Buy a Seiko Mod – The Honest 2026 Guide
Buying a Seiko mod? Compare movement, fit, model specifications, total price and return terms before choosing a finished watch or a custom configuration.
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What Is a Seiko Mod? The Complete 2026 Beginner's Guide
A Seiko mod is a modified watch or a custom build. Compare movements, parts, prices and purchase terms to choose the right model.
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SKX007 Mod Guide: From Stock Diver to Custom Masterpiece
The Seiko SKX007 is the most modded watch on earth. Here's everything you need: parts, costs, common builds and how to get yours done without breaking it.