42mm 44mm 45mm 49mm. 【Trusted Clasp】The double button folding clasp (also known as butterfly clasp) closes firmly and folds neatly inside the stainless steel band. For Apple Watch Ultra Series 10 / 9 / 8 / Series 7 / Series 6 / Series 5 / Series 4 / Series 3 / Series 2 / Series 1 / SE.
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