Seiko Cal. 5680 - 369

The Seiko 5680-369 represents an important milestone in Seiko's 1977 lineup. It features a White dial protected by a Hardlex crystal and offers 40m of water resistance. [seikata-wm-c37c71f66b9c]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

43mm

Case Thickness

12.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

18j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1977

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