In the late 1990s, Seiko embarked on a mission to revive its tradition of mechanical chronographs, calling upon some of its most experienced engineers and watchmakers—many of whom came out of retirement for the project. Their efforts culminated in the launch of the Series 6S calibres in 1998, developed for the domestic market and reserved for Seiko’s prestigious Credor line.

At the top of this series was the calibre 6S99, the most refined of the group, distinguished by its lavish decoration and cultural symbolism. A golden plate crowns the movement, engraved with 「水煙」 motifs inspired by the ornamental pillars atop Japanese temple towers, alongside a 「青海波」 wave-like pattern symbolizing harmony. The integrated chronograph mechanism is finished with silver plating and delicate perlage, underscoring the calibre’s luxurious execution.

Equally captivating is the dial, which combines golden plates with mother-of-pearl inlays that shimmer with iridescent hues depending on the light. Encased in platinum with a fluted bezel and accented by striking blued hands, the present reference is the non-limited edition sibling of the GBBL997, of which only 40 pieces were produced in 2000. Elegant, technically accomplished, and rich with Japanese artistry, this watch stands as one of Credor’s most distinguished creations.