Seiko Cal. 6677 - 771

Released in 1991, the Cal. 6677 with design code 771 was part of Seiko's domestic market collection. With its 18mm lug width and 15.4mm profile, it sits comfortably on most wrists. [seikata-wm-9d7cf8baf6d0]

Also known as: Sportsmatic, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

15.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

18j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1991

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