Reference: P509-1/2/3/4

Movement: SL5215 coaxial tourbillon (Automatic)

Case: 316L Stainless steel

Crystal: Sapphire crystal

Strap: Black /White / Ocean Blue / Black silicone

Buckle: Stainless steel standard buckle

Back case: See-through

Diameter: 43mm

Thickness: 13.5mm

Water resistance: 3 ATM

Power reserve: 45hrs