Seiko Cal. 5677 - 977

The Seiko 5677-977 represents an important milestone in Seiko's 1971 lineup. Powered by the 5677 caliber with 26j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-c873178d862b]

Also known as: Silverwave, Emperor

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

12.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Navy

Jewels

26j

Frequency

21,600 bph

Power Reserve

61 hours

Year

1971

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