Seiko Cal. 5677 - 571

The Seiko 5677-571 represents an important milestone in Seiko's 1980 lineup. Powered by the 5677 caliber with 27j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-bc69e6af5548]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

40mm

Case Thickness

11.4mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1980

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