Seiko Cal. 5647 - 401

The Seiko 5647-401 represents an important milestone in Seiko's 1978 lineup. With its 18mm lug width and 13.3mm profile, it sits comfortably on most wrists. [seikata-wm-eb3121fe4b80]

Also known as: Turtle

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

38mm

Case Thickness

13.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1978

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