Seiko Cal. 5643 - 903

The 5643-903 is a sought-after Kinetic piece from Seiko's golden era. With its 18mm lug width and 8.9mm profile, it sits comfortably on most wrists. [seikata-wm-8f7d6706dea0]

Also known as: Arnie

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

38mm

Case Thickness

8.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

29j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1974

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