Longines Master Gold & Steel Automatic Mens Watch. Swiss made, 38.5mm, 18-carat gold and stainless steel bracelet, automatic movement, scratch resistant sapphire crystal glass, water resistant to 30 metres. An eclectic collection comprised of a diverse range of styles, functionality and colours, the Longines Master collection is aptly named as the series seamlessly demonstrates Longines mastery of all aspects of the art of horology. Displaying a classic and functional aesthetic, this Master Collection timepiece is evidence of this. Affording the discerning gentleman a stylish accessory for any occasion. Completed by an automatic movement, the sophistication and style of this piece demonstrate why Longines are considered masters of the art.