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Seiko NH36 Kanji Wheel Movement High Accuracy Fit Seiko SKX007 SRPD 6105 Tuna Watch Crown at 3.8/3.0/4.1 Mechanical Watch Movt - AliExpress
SKX 009J1] You've seen a photo like this many times but this is the most accurate automatic I own. Since I put it back on Sunday it's gained only 2 seconds. Great