80s vintage watch mens Seiko Credor 7779-6000 18K Gold ultra thin

Credor is the pinnacle of Japanese haute horlogerie, blending traditional craftsmanship with refined elegance. Introduced by Seiko in 1974, the Credor line embodies minimalist design, ultra-thin movements, and meticulous hand-finishing by master watchmakers. 
From ultra-luxury dress watches to groundbreaking innovations like the Eichi series and Spring Drive Sonnerie, Credor reflects the soul of Japanese artistry and precision.

Case:
o   Stainless steel and solid rose gold 18k, ref. 7779-6000 serial 660030, minor marks of age
o   Fine condition with strong geometry
o   32mm without crown / 35mm lug to lug  / 4.5mm thickness /  18mm lug width
o   Original crown and crystal

Movement:
o   Quartz ultra thin -  serviced by watchmaker on March 2025
 
 
Dial & Hands:
    o Untouched in good condition

Bracelet Material: 
  o New 18mm black leather croco with generic chromed buckle
 
Conclusion / Condition: 
Credor not seen often - totally underrated, under-represented Seiko marque. The collection's name comes from the French "Créte d'Or" (the noblest gold). Credor watches are made with precious materials, high-quality technology, and the highest levels of craftsmanship.

please see photos as they are part of the description.
No box or pappers, no water proof test, sold as is, any question feel free for ask...
Keep in mind that it is a vintage watch, it is normal to be 1/2 minute early or late
wrist-treasure