Seiko Cal. 5650 - 697

The Seiko 5650-697 represents an important milestone in Seiko's 1978 lineup. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-a660dc5a8f35]

Also known as: Sumo, Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

10.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

70m

Dial Color

White

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1978

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