SEIKO PROSPEX SUMO REFERENCE SPB103J1

The green dial and unidirectional bezel add a bold pop of color to this PROSPEX professional diving watch, which still retains an elegant and understated look.
The screw-down caseback and crown protect the automatic movement of this model from water, born from Seiko's manufacturing know-how.
This robust high-performance watch perfectly embodies the spirit of the diver’s in the PROSPEX collection.
MAGNETIC RESISTANCE: 4800 A / m (60 Gauss)
WATERPROOF: diver's 200 meters (professional diver for diving)
MOVEMENT: automatic
GLASS: sapphire
DIAL: green
INDEX SPECIFICITY: LumiBrite
BEZEL: rotating, unidirectional
SPECIFICITY OF THE SPHERES: LumiBrite
CASE: stainless steel
CROWN SPECIFICITY: stainless steel, screw
BOTTOM: screwed
CASE SIZE: 45 mm
THICKNESS: 12.9 mm
LENGTH OF THE BRACELET / STRAP: from 16 to 21 cm
BRACELET: stainless steel
BUCKLE / CLASP: folding clasp with release button, safety, with length adjuster
CALIBER: 6R35
RUBIES: 24
FUNCTIONS: 3 hands, date
POWER RESERVE: 70 hours on full charge
FREQUENCY: 21600 vibrations / hour