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A traveller holding a passport and boarding pass wearing a 62GS 36mm NH34 GMT build, airport departure board glowing behind

Budget Seiko GMT Build: Compact 34–38mm NH34 Cases, Parts & Compatibility

August 12, 2026 9 min read

Compact 34–38mm cases that genuinely clear the NH34, how to read lug-to-lug against diameter, and the exact parts a small GMT build needs.
Eight blank Seiko mod dials in assorted finishes laid out on a dark leather bench mat

Seiko Mod Dial Compatibility: NH34, NH35, NH36 Dial Feet, Date Windows & Sizes

July 29, 2026 12 min read

Diameter almost never fails. The centre hole, the feet and 0.4mm of thickness are what decide whether your dial fits.
Seiko mod waterproofing toolkit — silicone grease, rubber gaskets, caseback and hand tools on a watchmaker's bench

How to Waterproof Your Seiko Mod: Gaskets, Pressure Testing & What Actually Works

July 15, 2026 12 min read

Gaskets, silicone grease, pressure testing, and the honest answer to whether you can swim with a modded watch.