Seiko Cal. 4551 - 635

Released in 1965, the Cal. 4551 with design code 635 was part of Seiko's domestic market collection. With its 21mm lug width and 10.7mm profile, it sits comfortably on most wrists. [seikata-wm-d03eb8eed9a8]

Also known as: Turtle, Samurai

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.7mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Burgundy

Jewels

30j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1965

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