01 / Case surfaceBrushed steel scatters the glare.
Brushing gives a metal surface a fine directional texture. The light is broken across that grain instead of appearing as one continuous mirror reflection. It often makes small fingerprints less obvious at first glance, though the surface still benefits from wiping.
Use a clean, soft cloth and light pressure. Grit trapped in a cloth can mark the finish. Do not take an abrasive pad to a case in an attempt to follow the grain; changing one small patch can leave a different sheen from the surrounding metal.
Arc 36 and Arc 40 specify brushed steel cases. The description does not establish a particular steel grade, coating or scratch resistance.
02 / Reflected edgePolish draws a brighter outline.
A polished surface reflects more sharply than a brushed one. On a case edge, that can make the transition between the dial and the side of the watch more noticeable without changing the dial itself. Fine marks can also become easier to see in that reflection.
The Linea 34 uses a polished-edge case with a warm cream dial. Choose that combination for the contrast of edge and face, not because polishing indicates a harder or more valuable metal.
Household metal polish is not a neutral cleaner. It may alter a finish or affect adjacent surfaces. Ask about the specific case before using a polishing compound or a chemically treated cloth.
03 / Flexible surfaceLeather records the bend.
The plain replacement leather watch strap is vegetable-tanned leather. That is a tanning description, not a promise that the surface will stay unchanged or a claim about environmental certification. The neutral tone lets the grain and usual fastening crease remain visible.
Leather can darken where it meets moisture and oils. Avoid soaking it, and do not speed drying with a heater or hair dryer. If it becomes damp, let it rest away from direct heat. A conditioner intended for another leather object may change the color or soften the strap too much.
The rust leather option has a contrasting edge. Its tanning method is not stated in the catalogue. The two straps share a material family, not an assumed identical treatment.
04 / Woven surfaceTextile makes the weave visible.
The woven strap uses tightly woven textile. The surface reads differently from a smooth band because light catches the crossing fibers. That is the appeal. Fiber composition and a washing temperature are not specified here.
Check where the strap passes through its keeper and around the fastening hole. Persistent fraying at a stressed point deserves inspection; it is not the same as a harmless change in color. Pulling a loose thread can make the damage worse.
A lighter everyday feel does not turn the attached watch into sports equipment. A textile strap's ability to dry says nothing about water entering the case.