Seiko – Prospex Alpinist Black Series Limited Edition – SPB337
Seiko – Prospex Alpinist Black Series Limited Edition – SPB337
Prospex Automatic, Limited Edition of 5,500
Re-interpretation of the 1959 Alpinist sports watch
Automatic with manual winding capability
Rotating inner compass ring
Date calendar
Green LumiBrite Pro – hands & markers, providing
improved night visibility to professional standards
Screw-down crown and see-through case-back
Tri-fold push button release clasp
CASE DIMENSIONS
DIAMETER: 39.5mm
LENGTH: 46.4mm
Thickness: 13.2mm
MOVEMENT: Caliber 6R35, 24 jewels
Vibrations per hour: 21,600
Power reserve: approximately 70 hours
CASE: Stainless steel case with black hard coating
CRYSTAL MATERIAL: Sapphire crystal with anti-reflective
coating on the inner surface
WATER RESISTANCE: 20 bar,200 meters (660 feet)
DIAL COLOR: Black
STRAP: Stainless steel bracelet with black hard coating
