Seiko 7C43-6A00
Professional Diver 200m
What Should You Pay?
Estimated fair market values. Actual prices vary by condition, completeness, and seller.
Recent Comparable Listings
A professional-grade quartz dive watch from Seiko's 1980s lineup featuring a titanium case and 200m water resistance. Notable for its compact 38mm mid-size case and professional diving features including a protective crystal retention system.
Specifications
Movement
More from Tuna
View all Tuna 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.