Seiko Cal. 6647 - 728

This Solar model from 1976 features a 36mm Gold-Plated case. It features a Burgundy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-ec2b2a9dfc1c]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

10.0mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1976

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