Seiko Cal. 6644 - 236

This Solar model from 1986 features a 46mm Two-Tone case. With its 18mm lug width and 13.9mm profile, it sits comfortably on most wrists. [seikata-wm-3e6ad954d561]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1986

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