Seiko SRPH31
Seiko 5 Sports Field Watch
What Should You Pay?
Estimated fair market values. Actual prices vary by condition, completeness, and seller.
Part of Seiko's modern 5 Sports collection, the SRPH31 features a field watch design in a versatile 39.4mm case size. It combines pilot watch elements with field watch functionality, featuring a highly legible blue dial and comes mounted on a matching fabric strap.
Specifications
Movement
More from 5 Sports
View all 5 Sports references →
Related Guides & Articles
The best watches you can buy under $1,000 in 2026 — pre-owned and new picks from Seiko, Hamilton, Orient, Tissot, and G-Shock with current prices.
Current secondhand Seiko prices — from the Seiko 5 to Presage and Prospex. See pre-owned median prices, ranges, and the best Seiko watches to buy used.
Learn how to compare pre-owned watch prices across marketplaces — understand market value, spot overpriced listings, and find the best deal on the watch you want.
The best deals on pre-owned watches this month — undervalued models from Rolex, Omega, Tudor, Seiko, and more, with current market prices and why they're worth buying.