Seiko Cal. 5257 - 442

This Kinetic model from 1975 features a 37mm Two-Tone case. It features a Black dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-be5911bcc7b8]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

37mm

Case Thickness

9.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

34j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1975

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