Seiko Cal. 5677 - 978

The Seiko 5677-978 represents an important milestone in Seiko's 1987 lineup. Powered by the 5677 caliber with 29j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-010c027feae6]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

10.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Green

Jewels

29j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1987

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