Material: solid stainless steel/solid titanium.
Crown: Screw-down crown.
Case for automatic movement:
for NH34/NH35/NH36/NH38/NH70/NH71/NH72/4R35/4R36
PT5000/ETA2824/ST2130/SW200
Glass: sapphire glass
Waterproof: 20 ATM
Case size: 36mm or 39mm in diameter, 12mm thick.
>Case compatible with dial:
36mm case: 28mm - 29.2mm diameter.
39 mm case: 33 mm - 34 mm diameter.
>Lug Size (Suitable for Strap): 20mm wide.
>Lug to lug: 45.7mm (36mm case), 48.6mm (39mm case)