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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Field III collection · 3 watches
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Owners praise the Gruppo Gamma Field III GMT for its aesthetic appeal and quality for the price, with some noting only minor wear on the bracelet. The watch features a 40mm brushed stainless steel case and a box sapphire crystal. The Seiko NH34A movement is noted to have a 41-hour power reserve and an accuracy range of -20 to +40 seconds per day. Some owners find the lack of a date window a drawback for a GMT watch. Overall, owners and reviewers consider the Gruppo Gamma Field III GMT a good value, highlighting its aesthetic and build quality at its price point.
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