Seiko Cal. 6357 - 544

This Quartz model from 1967 features a 38mm Hardlex-Coated Steel case. Powered by the 6357 caliber with 31j jewels beating at 21,600 bph, it delivers a 49 hours power reserve. [seikata-wm-5100bc9cbc64]

Also known as: World Timer, Sea Horse

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

8.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

40m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1967

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