Seiko Cal. 6640 - 270

This Solar model from 1981 features a 46mm Two-Tone case. The Fixed bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-26ae8f79731e]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

11.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

170m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1981

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