Seiko Cal. 6671 - 778

Released in 1977, the Cal. 6671 with design code 778 was part of Seiko's domestic market collection. It features a Blue Sunburst dial protected by a Mineral crystal and offers 180m of water resistance. [seikata-wm-a47a0ddaf4dd]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

12.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1977

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