Seiko Cal. 5643 - 975

The Seiko 5643-975 represents an important milestone in Seiko's 1972 lineup. With its 19mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-e2db7776655f]

Also known as: Tuna, Pogue

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

35mm

Case Thickness

9.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

21j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1972

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