Seiko Cal. 6357 - 171

This Spring Drive model from 1968 features a 44mm Titanium case. Powered by the 6357 caliber with 28j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-df9ab391a6b1]

Also known as: Sea Horse, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

12.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

30m

Dial Color

Navy

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1968

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