Seiko Cal. 6631 - 679

Seiko 6631-679

This Automatic model from 1991 features a 40mm Gold-Plated case. Powered by the 6631 caliber with 24j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-fd861b6478b2]

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
40mm
Case Thickness
10.1mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
170m
Dial Color
Navy
Jewels
24j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1991

Related Models

seikata-wm-fd861b6478b2