Here we have a 1521 ONDA with a 42mm 316L high polished stainless steel "von Büren" case that has a lug-to-lug length of 48mm and a thickness of 12.5mm, giving the watch an impressive wrist presence, this collection pays tribute to their dive heritage and specifically to their classic Charles von Büren-designed 1960s Squale 1521 which was also made for Doxa, Heuer, and Blancpain. The flowing lines of the case make it very comfortable to wear. At 4 o’clock a screw-down crown recessed into the case to protect it against knocks. A 120 clicks uni-directional stainless steel bezel has a matte grey DLC coated dive insert with raised polished numerals, the bezel is screwed on for easy removal. The flat sapphire crystal has an AR-coated for added visibility. A stunning blue Onda dial (Onda is Italian for waves) depicts the energy of the waves with its distinctive pattern, broad-applied baton indexes are coated in Super-LumiNova C3 marking the hours and at 3 o’clock a date window. Broad sword hands are coated in Super-LumiNova complemented by a centre second hand with a lumed counterweight. At 12 o’clock we have the Squale motif and at 6 o’clock “ONDA”. The polished screw-down case back has Squale acid etched in the centre, inside an automatic Sellita SW200–1 Elaborè movement, 26 jewels, 28,800 beats per hour, this Sellita Elaborè movement has hand winding and hacking for your convenience. The watch comes fitted on a Squale 20mm made-in-Italy dark brown leather strap with a signed buckle and comes with its Squale presentation box and paperwork. The watch comes with a 2-Year Manufacturer's Warranty.