Seiko Cal. 5656 - 973

The Seiko 5656-973 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 43mm case give it a distinctive presence on the wrist. [seikata-wm-a0cf32adb31e]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

43mm

Case Thickness

14.5mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Navy

Jewels

27j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1969

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