Miyota
Miyota's GMT complication caliber built on the 90-series platform, featuring an independently adjustable 24-hour hand for tracking a second time zone. At 28 jewels it has the highest jewel count in the Miyota automatic lineup. The 5.67mm height accommodates the additional GMT wheel train, and the true GMT function with jumping local hour hand makes it a compelling alternative to Swiss GMT movements at a fraction of the cost.
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Owners widely praise the San Martin Miyota 9075 GMT 39mm SN0144 for its superb case finishing, which rivals luxury watches, and its detailed dial and bezel finishing, with many feeling every element punches above its price point. The Miyota 9075 movement is highlighted for its GMT functionality and accuracy, with some owners reporting movements within +/- a few seconds per day. The bracelet and clasp are also frequently lauded as among the best experienced. Some owners desire a smaller 36mm or 37mm variant, finding the 39mm case too large for smaller wrists, while others report quality-control issues such as asymmetrical lug/link spacing or misaligned minute indices. One reviewer notes the watch is only 10.1 mm thick. On balance, owners rate the San Martin Miyota 9075 GMT 39mm SN0144 highly for its exceptional finishing and value, despite some wishing for a smaller case size.
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