Seiko Cal. 5677 - 687

The Seiko 5677-687 represents an important milestone in Seiko's 1968 lineup. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-dfc3cb3e3480]

Also known as: Pogue, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1968

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