Seiko Cal. 5671 - 577

The Seiko 5671-577 represents an important milestone in Seiko's 1972 lineup. Powered by the 5671 caliber with 29j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-215ff699c7e2]

Also known as: Sea Horse, Baby Tuna

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

29j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1972

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