SEIKO PROSPEX SPB155 (Alpinist)

Seiko Prospex SPB155 – Alpinist Collection

1959 Sport Watch Reinterpretation

The Seiko Prospex SPB155, from the iconic Alpinist Collection, reimagines Seiko’s first sport watch introduced in 1959. Designed for modern explorers, it features a compact case and a gradated green dial inspired by forest landscapes, with LumiBrite hands and markers for easy readability.

It runs on the Caliber 6R35 automatic movement, offering a 70-hour power reserve and supporting both manual and automatic winding. A curved sapphire crystal with inner anti-reflective coating, screwdown crown, and see-through caseback provide durability and clarity. Water-resistant to 200 meters, the watch comes on a stainless steel bracelet with a secure tri-fold push button clasp.

Features

Model: Seiko Prospex SPB155 – Alpinist Collection
Design: Inspired by Seiko’s first sport watch from 1959
Dial: Gradated green dial with LumiBrite hands and markers
Calendar: Date display at 3 o'clock
Movement: Manual and automatic winding capabilities
Caseback: Screwdown crown and see-through caseback
Strap: Stainless steel bracelet with tri-fold push button release clasp

Technical Data

Case Dimensions

• Diameter: 38.0 mm

• Thickness: 12.9 mm

• Length: 46.0 mm

Movement

• Caliber: 6R35 Automatic

• Jewels: 24

• Vibrations: 21,600 vibrations per hour

• Power Reserve: Approximately 70 hours

Materials & Build

• Case: Stainless steel

• Crystal: Curved sapphire crystal with anti-reflective coating on the inner surface

• Water Resistance: 20 bar (200 meters / 660 feet)

• Dial Color: Green

• Strap: Stainless steel bracelet

• Lug Width: 20 mm

For more details, visit the official Seiko website.

Warranty

• The watch comes with a warranty, ensuring quality and customer satisfaction.

▶︎Processing Time & Shipping Policy

▶︎Refund policy

▶︎We only carry SEIKO USA products.

▶︎Unfortunately, we DO NOT ship internationally.