Seiko Cal. 4437 - 813

The Seiko 4437-813 represents an important milestone in Seiko's 1965 lineup. The Bidirectional bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-99515d4d8659]

Also known as: Silverwave

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Navy

Jewels

34j

Frequency

28,800 bph

Power Reserve

64 hours

Year

1965

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