Seiko Cal. 6644 - 646

This Solar model from 1988 features a 44mm Gold-Plated case. The Inner Rotating bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-de3fd1b22270]

Also known as: Sumo, Sportsmatic

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

30j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1988

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