Seiko Cal. 3831 - 277

This Quartz model from 1982 features a 42mm Hardlex-Coated Steel case. Powered by the 3831 caliber with 18j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-93ea653c235b]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1982

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