Seiko Cal. 5691 - 758

The Seiko 5691-758 represents an important milestone in Seiko's 1967 lineup. With its 21mm lug width and 15.7mm profile, it sits comfortably on most wrists. [seikata-wm-20ba3e71f6d6]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

15.7mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

55 hours

Year

1967

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