CASE:
904L stainless steel
Diameter: 39mm
Lug width: 21mm
Case back: 904L stainless steel
Crown: 904L stainless Steel, screwed
STRAP :
904L stainless steel
Lug distance: 21mm
Strap length: From 15 to 23 cm
DIAL:
Original Seiko SPB143 dial
Dial: Lumibrite green
Hands : C3 green
GLASS:
Flat sapphire, transparent anti-reflective
BEZEL:
Stainless steel 904L, Polished