316L PVD Stainless Steel, brushed Black Composite insert 45 x 45 mm x 11mm 5ATM WR.
Steel & Silicone.
Seiko NH35 Self-winding 42h power reserve 24 jewels H, M, S.
Turbine pattern and circular grooves. PVD-coated brass.
Hour and minute and second indicators in aluminum. Custom anodized colors.
High grade silicone, hypo-allergenic. Custom screws.
Double pin. Ergonomically shaped for wearing comfort.
Sapphire, quadruple anti-reflective treatment.