Seiko SDGM001
Grand Cocktail
What Should You Pay?
Estimated fair market values. Actual prices vary by condition, completeness, and seller.
A JDM Seiko that represented a premium evolution of the popular Cocktail Time design. Notable for its upgraded specifications including double AR-coated sapphire crystal, 100m water resistance, and refined case finishing with drilled lugs. Part of the Brightz line, it featured a more sophisticated bracelet design with mixed brushed and polished surfaces.
Specifications
Movement
More from Brightz
View all Brightz 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.