subir fotos onlineStainless steel, bead-blasted, nickel-free
Entirely hardened, ice-hardened to 60 HRC or 710 HV
Integrated anti-magnetic inner cage, anti-magnetic to 80,000 A/m or 100 mT
Sapphire crystal, antireflective coating on both sides, extremely scratch-resistant anti-reflective coating
Crystal gasket resistant to UV radiation
Solid screw glass back with O ring Viton™ gasket
Sealing elements of crown with permanent lubrication
Screw-down crown, with crown protection, crown hardened along with mechanics
http://www.damasko.de/en/models/three-hand-models/rotating-bezel/da44
subir gifCase
• Case made of stainless steel, polished
• Sapphire crystal glass in front, anti-reflective on both sides
• Transparent case back made of sapphire crystal glass, anti-reflective on the interior
• Case back screw-fastened
• Crown screwable
• Water-resistant as per DIN 8310
• Pressure-resistant up to 20 bar (= 200 m water depth)
• Low pressure resistant
http://www.sinn.de/en/Modell/104_St_Sa.htm