Deep Diver GMT Dial [For NH34]

The Deep Diver GMT is a matt black dive dial — a revival of our original Deep Diver Dial (sold out in 2020), recut as a GMT for the Seiko NH34. The face is a deep, even matt black, with a clean outer minute track chosen to sit naturally against the lume in daylight. The hour markers are polished-silver applied (raised) indices, beveled and mirror-finished, filled with 100% Swiss Super-LumiNova® BGW9 Grade A — white by day, a cool blue glow by night, lasting up to eight hours on a full charge. It runs a true 24-hour GMT layout built around the NH34.

Yes, almost certainly. This is a standard Seiko mod dial — 28.5mm in diameter and 0.4mm thick, the industry-standard size — so it fits most, if not all, Seiko cases. Where a dial is shown with a particular case, that's an aesthetic pairing, not a fitment requirement. If you're unsure, the surest check is to remove your current dial and measure it with a vernier caliper.

This is a GMT layout, so it needs the Seiko NH34 — and only the NH34. The dial uses the wider 2.7mm centre hole the NH34's 24-hour GMT pinion passes through. It will physically sit on an NH35 or NH36, but a standard hour hand often won't cover the wider bore, so the movement shows through — for a clean result, use the NH34.

No — dials and hands are sold separately. This listing is for the dial only; choose a matching handset to complete the build. If your dial is lumed, pairing it with lumed hands in the same lume type keeps the whole face glowing together.

Yes — the applied indices are filled with 100% Swiss Super-LumiNova® BGW9 Grade A: a cool blue glow by night, white by day, lasting up to eight hours on a full charge. For maximum glow, pair it with hands that also carry BGW9 so the whole face glows together (hands are sold separately).

Applied. The hour markers are applied (raised) indices — raised metal on the dial surface, not flat print. The relief is what gives the face its depth and light play as the wrist moves.

The dial ships with four legs so it fits two different crown positions. Seiko movements come in 3 o'clock and 4 o'clock crown layouts, and the dial feet sit in different places for each. Clip off the two legs that don't match your crown position — two stay, two go.

Remove the two legs that don't match your movement's crown position by clipping or gently twisting them off, then seat the dial as normal — two legs stay, two go. Alternatively, set the movement's crown to the 3 o'clock or 4 o'clock position, superimpose the dial on top, and see how the feet line up — whichever way it aligns, note which two legs need cutting and proceed from there. See the How To Mod tab for the full fitting walkthrough.

Both our normal and ultra thin chapter rings fit this dial. Where a dial has applied (raised) indices, they sit within the clearance of either ring — so the choice is purely about looks: the ultra thin chapter ring sits low and discreet, while the normal sits a little more pronounced. Pick whichever suits your style.

Our dials carry the logo on an adhesive backing rather than a stamped or engraved mark, so it isn't baked into the surface — but removing one cleanly isn't realistic. The adhesive doesn't release without scratching or marking the dial, and the risk is greatest on enamel. We sell our dials as-is and don't modify them. You're welcome to remove it yourself or have a modding specialist do it, just knowing the face will likely pick up some cosmetic marks.

Yes, it's a limited edition, and it won't be restocked. Once the run sells out it's retired for good. The edition size is shown on the product page.