Prospex Alpinist. Seiko Prospex challenges every limit with timepieces created to exceed expectations, engineered with superior style and innovative technology for the sea, sky or land. Driven by a heritage of iconic design, Prospex continues to keep going forward with excellence in precision timekeeping, crafted for the modern world. Inspired by Seiko’s first sports watch, introduced in 1959 for daring mountaineers, this tailored, yet rugged creation celebrates the rise to high-intensity timekeeping by prominently displaying the Alpinist logo on the dial. Equipped with a rotating inner compass bezel for outdoor adventure, the iconic design features a green dial, a color theme pulled from the archives, with the signature Arabic numerals and wedge shaped indices of the series in gold as well as LumiBrite hands and markers. Visible through the transparent caseback, marked with the trademark Alpinist “mountain” symbol, the 24-jewel automatic movement beats at a frequency of 21,600 vibrations per hour with a power reserve of approximately 72 hours and manual winding capability. Crafted of stainless steel with super-hard coating, paired with a brown calf leather strap sourced from an LWG certified tannery. 20 Bar, 200M Water Resistant.
- Model: SPB507
- Collection: Prospex
- Gender: Men's
- Dial Color: Green
- Strap Material: Leather
- Strap Detail: Strap
- Distance between lugs: 20 mm
- Movement: Automatic
- Caliber: 6R55
- Jewels: 24
- Power Reserve: approximately 72 hours
- Case Material: Stainless steel
- Case Diameter (mm): 39.5
- Case Thickness (mm): 12.7
- Lug to Lug (mm): 46.4
- Crystal Type: Sapphire crystal with anti-reflective coating (inner surface)
- Water Resistance: 200m
- LumiBrite: LumiBrite hands and markers
- Functions: Rotating inner compass bezel, Magnified date calendar, Screwdown crown, Transparent screwdown caseback, Tri-fold push button release clasp
- Inspired by Seiko’s first sports watch, introduced in 1959 for daring mountaineers
- Classic green dial with sunray finish and gold accents
- Signature Arabic numerals and wedge shaped indices
- Stylized LumiBrite hands and markers
- Alpinist logo displayed on the dial
- Rotating inner compass bezel
- Automatic with manual winding capability
- Magnified date calendar
- Screwdown crown
- Transparent screwdown caseback with iconic Alpinist mountain symbol
- Tri-fold push button release clasp
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