Grand Seiko Sport Collection SBGM245 Mechanical GMT

“Automatic GMT”

The SBGM245 brings a fully mechanical GMT to the 40.5mm stainless steel sport case, distinguished by a deep blue dial rather than the black of its Spring Drive siblings. It runs the high-beat-adjacent 9S66 automatic at 28,800 vph with a 72-hour reserve, making it the purely mechanical counterpart…

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