Seiko Cal. 5688 - 698

Released in 1975, the Cal. 5688 with design code 698 was part of Seiko's domestic market collection. It features a Silver dial protected by a Acrylic crystal and offers 50m of water resistance. [seikata-wm-2e3f49a4f20d]

Also known as: Sumo

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

10.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1975

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