Seiko Cal. 5691 - 827

The Seiko 5691-827 represents an important milestone in Seiko's 1982 lineup. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-89b276971067]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

White

Jewels

20j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1982

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