Seiko Cal. 6637 - 128

The Seiko 6637-128 represents an important milestone in Seiko's 1969 lineup. The Rotating bezel and 35mm case give it a distinctive presence on the wrist. [seikata-wm-fd4185213154]

Also known as: Navigator

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

50m

Dial Color

Navy

Jewels

19j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1969

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