Seiko Cal. 4487 - 816

The Seiko 4487-816 represents an important milestone in Seiko's 1976 lineup. It features a White dial protected by a Hardlex crystal and offers 140m of water resistance. [seikata-wm-540d7507bdb7]

Also known as: Shogun, Tuna

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

38mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

55 hours

Year

1976

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