Seiko Cal. 5644 - 935

The Seiko 5644-935 represents an important milestone in Seiko's 1982 lineup. With its 19mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-a202263fe62c]

Also known as: Turtle, Golden Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

Black

Jewels

17j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1982

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