Seiko
A Seiko (TMI / Seiko Instruments) automatic GMT caliber — the export-market designation of the Seiko 4R34 — that adds a 24-hour fourth hand to the NH35 / 4R35 base. It runs at 21,600 vph with about 41 hours of power reserve, hacks and hand-winds, and has become the default affordable GMT for microbrands.
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The community take
Owners widely praise the San Martin Retro NH34 GMT SN0134 for its beautiful appearance and premium feel, with particular admiration for its indigo/purple, sand, and green colorways, with some comparing its perceived quality to watches costing significantly more. The Seiko NH34 movement is discussed, with some community members attributing minor play in the GMT hand mechanism to normal behavior during setting, and one owner reporting initial GMT hand alignment issues that improved after following manufacturer adjustment guidance. Opinions are split on the hands; some users expressed a preference for sword hands over the current Mercedes-style hands. Overall, owners rate the San Martin Retro NH34 GMT SN0134 highly for its impressive aesthetics and perceived value.
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