Seiko Cal. 4487 - 948

The Seiko 4487-948 represents an important milestone in Seiko's 1966 lineup. The Inner Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-0a3e149f3c75]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

15.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

25j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1966

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