Seiko Cal. 6257 - 105

This Spring Drive model from 1971 features a 44mm Gold-Plated case. Powered by the 6257 caliber with 33j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-fada82dc3b24]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.9mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

33j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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