Seiko Cal. 6171 - 639

Seiko 6171-639

The Seiko 6171-639 represents an important milestone in Seiko's 1981 lineup. Powered by the 6171 caliber with 20j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-3feac683e759]

Also known as: UFO

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.2mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
140m
Dial Color
Blue Sunburst
Jewels
20j
Frequency
36,000 bph
Power Reserve
39 hours
Year
1981

Related Models

seikata-wm-3feac683e759