Seiko Cal. 5637 - 449

The Seiko 5637-449 represents an important milestone in Seiko's 1966 lineup. The Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-1b462081ec97]

Also known as: Monster, Emperor

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

110m

Dial Color

Navy

Jewels

19j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1966

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