Seiko Cal. 5691 - 405

The Seiko 5691-405 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 12.5mm profile, it sits comfortably on most wrists. [seikata-wm-dbe531bd542d]

Also known as: Turtle, Samurai

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

24j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1984

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