Seiko Cal. 5251 - 240

The Seiko 5251-240 represents an important milestone in Seiko's 1972 lineup. With its 22mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-6b6dcdf7b53b]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

11.2mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1972

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