Seiko Cal. 6381 - 728

This Solar model from 1970 features a 39mm Two-Tone case. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-a0f53dc2f129]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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