Vintage Seiko Moonphase Quartz, Ladies Watch, Ref. 4K22-0089, Two-Tone Dial, Roman Numerals

A ladies dress watch from the late 1980s, it was produced at a time when Seiko was pushing the boundaries of what a quartz watch could be - adding poetic complications like the moonphase to compact, elegantly styled cases. Today, pieces like this are quietly sought after by collectors who appreciate Japanese watchmaking with character.

What sets this watch apart is the dial. It is a true two-tone design: a deep navy blue outer chapter ring hosts bold gold-tone Roman numerals at all twelve positions, while a clean white inner dial carries the time display with understated dot markers and slim gold-tone hands. At 6 o'clock, the moonphase aperture opens up the watch entirely - a starry blue sky with a golden moon, rotating in sync with the lunar cycle. It is a detail that set this watch apart from a simple dress watch to something that feels genuinely considered.

CASE

• Reference: 4K22-0089
• Case size: 26mm
• Lug to lug: 31.5mm
• Thickness: 7mm
• Gold-plated case

DIAL

• Two-tone dial: white center with dark blue outer ring
• Roman numeral hour markers
• Moonphase display at 6 o’clock

MOVEMENT

• Seiko quartz movement
• Caliber: 4K22 (moonphase-equipped)
• Japanese quartz movement