Seiko Cal. 0787 - 831

This Spring Drive model from 1981 features a 46mm Stainless Steel case. It features a Blue Sunburst dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-715949696b46]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

32j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1981

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