BSW0243A – Navitimer Cosmonaute SS/LE Black/Blue Jap OS20 Qtz

MOVEMENT: Japanese OS20 Quartz Chronograph movement
CASE DIAMETER: 45mm 
THICKNESS: 15.5mm 
DIAL COLOR: Black Dial, Black Subdials, 2-24 Numeral Hour Markers, Blue Accent Needles
CASE MATERIAL: Solid 316 Stainless Steel
BRACELET: Leather Strap with Single Foldover Insignia Clasp 
FRONT GLASS: Synthetic Sapphire 
BACK GLASS: Solid Caseback with Detail Engraving
BEZEL:  Bi-directional bezel
HACK MOVEMENT: Yes 
CLASP TYPE: Double Fliplock
DATE INDICATOR: At 4:30 position 

OTHER REMARKS:

Water Resistant
FULLY FUNCTIONAL Chronograph
Seconds subdial at 6:00
24hr Indicator at 3.00 Subdial
Pusher button at 2:00 starts/stops chronograph
Pusher button at 4:00 reset chronograph