Seiko Cal. 5691 - 721

The Seiko 5691-721 represents an important milestone in Seiko's 1966 lineup. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-edf0ad067ab9]

Also known as: Shogun

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.2mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1966

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