Seiko Cal. 6637 - 416

The Seiko 6637-416 represents an important milestone in Seiko's 1967 lineup. The Bidirectional bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-38b4b13218bf]

Also known as: Panda

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

34mm

Case Thickness

10.2mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Burgundy

Jewels

32j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1967

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