Seiko Cal. 6357 - 643

The Seiko 6357-643 represents an important milestone in Seiko's 1969 lineup. Powered by the 6357 caliber with 33j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-1ef6e8a1d18a]

Also known as: Pogue

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.6mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Green

Jewels

33j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1969

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