Seiko Cal. 5691 - 424

The Seiko 5691-424 represents an important milestone in Seiko's 1977 lineup. The Coin-Edge bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-568ce1197dd2]

Also known as: Monster

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Green

Jewels

31j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1977

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