🛡 Authorized retailer • Manufacturer warranty included

Seiko Prospex Alpinist SPB155

Regular price $725.00
Free Shipping US orders over $50 after discounts

The Seiko Prospex Alpinist SPB155 pairs a green dial with a compact 38mm stainless-steel case and bracelet. It offers the outdoor-inspired character of the Alpinist collection in smaller proportions than the 39.5mm SPB117.

Why this watch stands out

The automatic 6R35 movement provides approximately 70 hours of power reserve. Its 12.9mm-thick case has a curved sapphire crystal with anti-reflective coating on the...

  • Sku: SPB155
  • Available: Out of Stock
  • Vendor: Seiko
Seiko Prospex Alpinist SPB155, complete watch view
Seiko Prospex Alpinist SPB155
Regular price $725.00

Why Watch It?

AUTHORIZED RETAILER

Real watches. Real brands. Authorized retailer.

MANUFACTURER WARRANTY

Manufacturer Warranty, backed by the brand

30-DAY RETURNS

Changed your mind? You've got 30 days

Unworn items only. Excludes clearance items and gift cards.
★
4.5 ★ ON GOOGLE

Rated by Watch It clients

The Seiko Prospex Alpinist SPB155 pairs a green dial with a compact 38mm stainless-steel case and bracelet. It offers the outdoor-inspired character of the Alpinist collection in smaller proportions than the 39.5mm SPB117.

Why this watch stands out

The automatic 6R35 movement provides approximately 70 hours of power reserve. Its 12.9mm-thick case has a curved sapphire crystal with anti-reflective coating on the inner surface, while water resistance is rated to 20 bar (200 meters).

What to know before you buy

Choose this reference if you want a green-dial mechanical watch with a 38mm case and a steel bracelet. The automatic movement runs on stored mechanical energy, so you may need to wind and reset it after it has been left unworn beyond its power reserve.

Our take

The green dial gives this Alpinist its personality, while the compact case and bracelet make it a compelling everyday option for someone who prefers smaller sports watches.

<Seiko Prospex Alpinist SPB155, complete watch view

COLLECTION: Prospex
GENDER: Men's
MOVEMENT: Automatic
BAND: Stainless Steel
DIAL COLOR: Green
CALIBER: 6R35
BOOKLET: JSY6R3C1
PRODUCT NAME: Prospex Alpinist
CALIBER: Caliber 6R35
VIBRATION: 21,600 vibrations per hour
POWER RESERVE: 24 jewels
CASE DIAMETER (MM): 38.00
CASE THICKNESS (MM): 12.90
CASE LENGTH (MM): 46.00
WEB CASE MATERIAL: Stainless steel case
WEB CRYSTAL: Curved sapphire crystal with anti-reflective coating on the inner surface
WEB STRAP: Stainless steel bracelet
WEB LUG: 20
WEB WATER RESISTANCE: 20 bar, 200 meters (660 feet)
CASE CROSS REFERENCE: ALPINIST2

Seiko Prospex Alpinist SPB155, complete watch view

  • 1959 Sport Watch Reinterpretation
  • Manual and automatic winding capabilities
  • Gradated green dial
  • Date calendar
  • LumiBrite hands and markers
  • Screwdown crown and see-through caseback
  • Tri-fold push button release clasp

Seiko Prospex Alpinist SPB155, complete watch view

Seiko's journey, which began in 1881, is a remarkable story of vision, innovation, and dedication. When Kintaro Hattori, a 21-year-old entrepreneur, opened his small shop in Tokyo’s bustling Ginza district, he laid the foundation for what would become one of the world’s most respected watchmaking companies. Initially, Hattori focused on selling and repairing watches and clocks, but his ambition was far greater. He envisioned creating timepieces that would not only be precise but also reflect the spirit of Japanese craftsmanship.
In 1892, just over a decade after opening his shop, Hattori took a significant step forward by founding Seikosha, a factory dedicated to producing wall clocks. The name "Seikosha" means "House of Exquisite Workmanship," and it represented Hattori’s commitment to quality. By 1913, Seikosha had produced Japan’s very first wristwatch, the Laurel, marking a historic milestone for both the company and the nation’s watchmaking industry.

You may also like