Seiko Cal. 4438 - 653

The Seiko 4438-653 represents an important milestone in Seiko's 1968 lineup. With its 18mm lug width and 15.5mm profile, it sits comfortably on most wrists. [seikata-wm-30573e2ba748]

Also known as: Rally, Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

40mm

Case Thickness

15.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1968

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