Seiko Presage SSA405J1 ‘Blue Moon’ Cocktail Time Automatic Watch

Inspired by the rare and romantic Blue Moon cocktail, the Seiko Presage SSA405J1 translates its deep, luminous blue into a dial that feels as special as the occasion it’s named after — part of Seiko’s celebrated Cocktail Time series, born from Tokyo’s Ginza cocktail culture.

Design & Dial
• Deep blue dial inspired by the Blue Moon cocktail
• Date display for everyday practicality
• 40.5mm stainless steel case with polished finishing
• Hardlex crystal for reliable scratch resistance

Movement & Performance
• Seiko 4R38 automatic calibre — 24 jewels, 41-hour power reserve
• Hand-winding capability — no battery needed
• Stop-seconds function for precise time setting

Finishing & Wearability
• Blue calfskin leather strap — colour-coordinated with the dial
• Secure buckle clasp
• 50m water resistance for daily wear
• Made in Japan

Why Choose the SSA405J1?
The Blue Moon is one of the most cohesive expressions in the Cocktail Time series — the blue dial and matching calfskin strap create a unified look that feels intentional and refined. A watch for those who appreciate the details.

Ideal for cocktail watch enthusiasts, blue dial collectors, and those who appreciate colour-coordinated Japanese watchmaking.