Seiko Cal. 7057 - 940

This Spring Drive model from 1965 features a 38mm Hardlex-Coated Steel case. Powered by the 7057 caliber with 34j jewels beating at 28,800 bph, it delivers a 48 hours power reserve. [seikata-wm-96e49a231e44]

Also known as: Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

34j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1965

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