Seiko Cal. 5643 - 101

The Seiko 5643-101 represents an important milestone in Seiko's 1968 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-932336c2e0e3]

Also known as: Panda, Bellmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

39mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Silver

Jewels

25j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1968

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