Seiko Half Moon Quartz Watch Value Guide

The Seiko Half Moon Quartz Watch is a striking example of 1970s and 80s Japanese design, featuring a distinctive asymmetrical crystal and dial. As a product of the quartz revolution, this gold-toned ladies' timepiece represents Seiko's era of bold, artistic innovation in affordable precision watchmaking.

What affects the value of Seiko Half Moon Quartz Watch?

• Condition of the mineral crystal, as the unique half-moon shape is difficult to replace if scratched or cracked.
• Functionality of the vintage quartz movement and the absence of battery leakage or internal corrosion.
• The preservation of the gold plating, specifically looking for wear or 'brassing' on the edges and strap.
• Originality of the components, including the crown and the period-correct Seiko clasp.

How to Identify Seiko Half Moon Quartz Watch?

• Look for the signature half-moon or 'D-shaped' mineral crystal that creates an asymmetrical silhouette.
• Verify the Seiko brand name on the dial and the 'Japan' origin marking typically found at the bottom of the face.
• Check the case back for the specific movement-case serial numbers characteristic of 1970s and 80s Seiko quartz models.
• Confirm the presence of a gold-plated finish on both the case and the integrated or matching bracelet.

History of Seiko Half Moon Quartz Watch

Seiko, founded in 1881 in Tokyo, Japan, has a long history of innovation in watchmaking. In the 1960s and 70s, Seiko was at the forefront of the quartz revolution, which dramatically changed the watch industry by introducing highly accurate and affordable timepieces. The 'Half Moon' design, with its unique asymmetrical crystal, was a stylish offering from this era, reflecting the artistic and unconventional trends popular during that time.