Seiko Cal. 5257 - 140

The Seiko 5257-140 represents an important milestone in Seiko's 1991 lineup. With its 19mm lug width and 10.3mm profile, it sits comfortably on most wrists. [seikata-wm-dc9b621c74e2]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Green

Jewels

36j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1991

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