Seiko Cal. 6657 - 643

This Solar model from 1977 features a 37mm Two-Tone case. It features a White dial protected by a Acrylic crystal and offers 200m of water resistance. [seikata-wm-667cd948059a]

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

10.6mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

200m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1977

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