TONA BLACK SILVER MOD

40 mm stainless steel case – timeless and elegant

Seiko VK63 hybrid movement – quartz accuracy with mechanical chronograph feel

Sapphire crystal with Super-LumiNova – excellent clarity and readability

Screw-down crown & 3 ATM water resistance – secure for everyday use

Tachymeter bezel & chronograph function – designed for precise timing

904L stainless steel bracelet – adjustable 14.5–22 cm, 20 mm lug width