Jeg har satt en italiensk gummireim på Certina DS First, og den utsettes for det meste av gårdsarbeid og på jobb i Nordsjøen. Den har badet i oljemud og hestedritt, den er med på slåmaskinen og skogsarbeid. Den har ikke så høyglanspolerte detaljer lenger, men det synes jeg bare er bra. Om den skulle bli ødelagt kommer jeg til å anskaffe en Damasko, den tåler vel mer enn de fleste andre klokker:
Technical Specifications - Model DA36
Movement:
-ETA 2836-2, self-winding, mechanical movement
-25 jewels
-28,800 bph
-Shockproof according to DIN 8308
-Anti-magnetic according to DIN 8309
DA 36 functions:
-Hour, minute, permanent central sweep second
-Day/Date window with new, modified position
Case:
-Stainless steel, nickel-free, bead-blasted, entirely hardened
-Ice-hardened to guaranteed 60 HRC or 710 Vickers
-Integrated anti-magnetic inner cage, anti-magnetic to 80,000 A/m or 100 mT
-Sapphire crystal with anti-reflective coating on both sides, AR coating on the underside only, available on special request
-Crystal gasket resistant to UV radiation
-Solid screw back with O-ring Viton™ gasket
-All gaskets made from Viton™ which offers a premium chemical resistance and supersedes most other materials used in the watch industry
-Permanent lubrication of crown via lubrication cell
-Screw-down crown with protective shoulders, crown tube screwed into the case for easy maintenance (“System Damasko”)
-Crown, stem, and tube hardened to 60 HRC
-Water resistant to 10 bars/100 metres according to DIN 8310
-Crystal has a secure fit even in case of a sudden negative pressure.