MOVEMENT: Japanese OS 20 Quartz working Chronograph movement
CASE DIAMETER: 43mm
THICKNESS: 15mm
DIAL COLOR: Black dial, Black Subdials  
CASE MATERIAL: Solid Stainless Steel 316L
BRACELET: Leather strap with Tang Buckle
FRONT GLASS: Sapphire Crystal 
BACK GLASS: Solid Case Back
BEZEL: Polished Ceramic Bezel
HACK MOVEMENT: Yes 
CLASP TYPE: Tang Buckle
DATE INDICATOR: At 4:30 (set via crown)

OTHER REMARKS:

Water Resistant 
Fully Functional Chronograph
Pusher at 2:00 starts/stops Chronograph
Pusher at 4:00 resets Chronograph
*Please read Watch Q&A for more details on using Chronograph movement