Seiko Luxe Alpinist SPB505 Watch
Seiko Luxe Alpinist SPB505 Watch
A rugged mountaineering watch with a rotating compass bezel and 72-hour power reserve.
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Editor’s Note
Seiko introduced its first sports watch in 1959 for mountaineers who needed a tool they could trust at altitude. The Alpinist SPB505 carries that lineage into a 39.5mm hardened stainless steel case, a black dial with signature Arabic numerals, wedge-shaped indices, and LumiBrite hands built for low-light readability. A rotating inner compass bezel handles navigation. The sapphire crystal has anti-reflective coating on the inner surface, and a screwdown crown and caseback deliver 660 feet of water resistance. Inside, the automatic Caliber 6R55 beats at 21,600 vibrations per hour with a 72-hour power reserve and manual winding capability. The Alpinist mountain symbol is visible through the transparent caseback.
Details & Specs
- Movement: Caliber 6R55, automatic with manual winding, 21,600 vph, 24 jewels, 72-hour power reserve
- Case: 39.5mm diameter, 12.7mm thickness, 46.4mm lug to lug, hardened stainless steel
- Crystal: Sapphire with inner anti-reflective coating
- Water Resistance: 20 bar / 200 meters / 660 feet
- Dial: Black with Arabic numerals, wedge-shaped indices, LumiBrite hands and markers, rotating inner compass bezel, date window with magnification
- Strap: Stainless steel bracelet with super-hard coating, tri-fold push button release clasp
- Lug Width: 20mm
