Automatic movement, calibre 3135, water resistant up to 1000 feet, case/serial number A511843/38184075, 31 jewels, 48 hours power reserve. Stainless steel case with a deep blue dial, crafted 18k yellow gold luminous Mercedes hands for hour, minute and seconds. Superluminova batons hour markers are applied on the dial surrounded by 18K gold rings, date aperture at 3 o'clock position. Surrounding the dial is a unidirectional 18k gold bezel with a 60-minute scale. Rolex's iconic, patented Oyster steel for maximum protection against wear and tear with the centre link being polished 18k yellow gold and flanking steel brushed finish links on the sides, bracelet includes a folding clasp. The Rolex 16613 Submariner is a highly recommended dive watch. Superlative Chronometer Officially Certified. Dial, movement& claspsigned, crownbrandedwithlogo