
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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Owners widely praise the Core Timepieces The River Watch for its unique "seven deadly sins" date window concept, with some finding the white-faced version particularly cool. However, opinions are divided on the dial's aesthetic, with some calling it too busy, tacky, or toy-ish due to multiple fonts and the switchblade hands, while others appreciate the dual-color bezel and unique hands. One owner found the automatic movement not the most comfortable. Overall, owners rate the Core Timepieces The River Watch highly for its novel "seven deadly sins" date complication and unique design elements, despite a split on the dial's visual execution.
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