SJ Production Sevenfriday M3/01 Original imported 8215 mechanical movement, reinforced blue light glass, imported calfskin strap, high-end 316 stainless steel case measuring 47mm x 47mm. Market high-end quality, recognized for its craftsmanship and attention to detail. The entire series supports NFC sensing function. SJ elegantly recommends this exquisite mechanical watch, crafted with care to present ultra-realistic product images.