Seiko Cal. 5680 - 388

Released in 1974, the Cal. 5680 with design code 388 was part of Seiko's domestic market collection. It features a White dial protected by a Hardlex crystal and offers 200m of water resistance. [seikata-wm-e71e71ac7af4]

Also known as: Helmet, Golden Tuna

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

11.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

200m

Dial Color

White

Jewels

32j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1974

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