Seiko Cal. 3831 - 156

This Automatic model from 1979 features a 40mm Hardlex-Coated Steel case. Powered by the 3831 caliber with 36j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-c60b742688cb]

Also known as: Flighty

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

14.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1979

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