Seiko Cal. 5691 - 835

This Spring Drive model from 1969 features a 38mm Hardlex-Coated Steel case. With its 21mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-25084806a7e3]

Also known as: Turtle, Silverwave

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Green

Jewels

35j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1969

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