Seiko Cal. 6677 - 671

The Seiko 6677-671 represents an important milestone in Seiko's 1980 lineup. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 90m of water resistance. [seikata-wm-f51d7d3555fe]

Also known as: Sumo, Shogun

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.5mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Blue Sunburst

Jewels

23j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1980

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