Steeldive 1975 is an homage to “perfect professional divers' watch” in 1975. One of its innovative features is the ceramic protective shroud that makes the watch extremely robust and also very distinctive. Aficionados thought it looked like the wearer had a can of tuna strapped to his wrist, hence the nickname, “Tuna”.

Watch Specification Model: SD1975 Movement: Japan NH35 automatic, 41 hours of energy storage.  Case material: 316L stainless steel Case back: 316L stainless steel Dial: Black, sunburst blue, sunburst green Bezel: 120 clicks unidirect rotational ceramic bezel Watch mirror: sapphire crystal with AR coating. Water resistance: 300m / 30 ATM Luminous: Swiss C3 green and BGW9 blue super luminous. Crown: Screwdown Crown Case back: Screwback Case

Watch Dimension Case diameter: 47.5mm ( without crown) Case length: 44mm (lug to lug) Case thickness: 15mm  Lug width: 22mm