Seiko Cal. 5648 - 366

The Seiko 5648-366 represents an important milestone in Seiko's 1987 lineup. With its 19mm lug width and 14.6mm profile, it sits comfortably on most wrists. [seikata-wm-1be11e881cab]

Also known as: Sumo, Rally

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

34mm

Case Thickness

14.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1987

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