SEIKO PROSPEX Marine Master REFERNCE SPB187J1

The Prospex SPB187J1 is a modern reinterpretation of the 1968 Marine Master diving watch.
This model features a black aluminum bezel and blue brushed "sunburst" dial.
It is powered by the 6R35 caliber, which offers a 70-hour power reserve.
The case has a super tough coating and an anti-reflective sapphire crystal.
It is water resistant up to 200 meters.
MODEL: PROSPEX men's watch ~ 3 hands automatic diver
WATERPROOF: diver's 200 meters (professional diver for diving)
MOVEMENT: automatic
GLASS: sapphire, anti-reflective treatment
DIAL: blue
INDEX SPECIFICITY: LumiBrite
BEZEL: stainless steel
SPECIFICITY OF THE SPHERES: LumiBrite
CASE: stainless steel, scratch resistant coating
CROWN SPECIFICITY: screw
BOTTOM: screwed
CASE SIZE: 42 mm
THICKNESS: 12.5 mm
BRACELET: stainless steel, scratch resistant coating
BUCKLE / CLASP: folding clasp with release button
CALIBER: 6R35
RUBIES: 24
FUNCTIONS: analog display (spheres)
POWER RESERVE: 70 hours on full charge
FREQUENCY: 21600 vibrations / hour