Certina S.A. is a entry level Swiss luxury watchmaker founded in Grenchen, 1888, by Adolf and Alfred Kurth. Certina watches combine luxury and sportiness, using technological innovation and high quality materials to produce amazing timepieces with top reliability. Personally, I find this brand simply the best of inexpensive Swiss watchmakers. Price/quality rate is surprisingly brilliant. Brand-new men's diver's watch with black dial and 3 silver sub-dials. - black unidirectional rotating diver's bezel - anti-reflective scratch-resistant sapphire crystal - date display at 04:00 o'clock position - chronograph: 1/10 second counter at 10:00 o'clock 60 second repetition at 06:00 o'clock 30 minutes counter at 10:00 o'clock - tachymeter - Double Security (DS): reinforced case back - extreme shock resistant - gaskets around winding stem, inside crown and case back Case: - 316L stainless steel, brushed/polished - diameter: 42.5mm excl. crowns - Swiss high precision quartz chronograph calibre Unique No: TKM-BC-32752-RC+ Crown: screw-in with two O-ring gaskets Weight: 120grams Strap: - black original Certina rubber with logo, ref. No: 07.21309 - lenght: 21cm - width: 21mm Clasp: original folding with logo and diver double-security Water-resistance: 200m/660ft/20bar Rare model DS+; ideal wristwatches for a modern, confident, sporty man with taste. Insured, registered shipping.