Seiko Cal. 3891 - 686

This Quartz model from 1979 features a 45mm Hardlex-Coated Steel case. Powered by the 3891 caliber with 20j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-4431dbd8315c]

Also known as: Flighty

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1979

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