Seiko

SPB121J1

Seiko PROSPEX Alpinist - Green Dial

PROSPEX

Prospex Automatic Diver. Designed for those who treat life as the ultimate adventure, the Seiko Prospex line follows every challenge with technological excellence and winning design. Upgrading an iconic style with a ceramic bezel and a sapphire crystal with anti-reflective coating on the inner surface, this rugged, yet distinctive, timepiece offers a three-dimensional pressed pattern on the rich black dial, mirroring the shape of the bezel edge. LumiBrite hands and markers, and a magnified day/date window ensure legibility in rough conditions. The 24-jewel automatic movement beats at a frequency of 21,600 vibrations per hour, with a power reserve of approximately 41 hours, and can be wound manually or automatically. In stainless steel, with black ceramic one-way rotating elapsed timing bezel, secure screwdown crown and caseback, this high-intensity watch follows ISO standards for scuba diving. 200m Water Resistant.

Movement

Caliber Number:6R35

Movement Type:Automatic with manual winding capacity

Accuracy:+25 to -15 seconds per day

Exterior

Case Material:Stainless steel

Crystal:Sapphire with magnifier

Crystal Coating:Anti-reflective coating on inner surface

LumiBrite:Lumibrite on hands and indexs

Band Material:Calfskin

Clasp:Three-fold clasp with push button release

Other Details

Water Resistance:200 bar

Case Size

Thickness: 13.2㎜
Diameter: 39.5㎜
Length: 46.4㎜

Other Specifications

  • Rotating compass inner ring
  • Screw case back
  • Screw-down crown
  • See-through case back

Other Features

  • 24 jewels
  • Date display
  • Stop second hand function

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