Seiko Cal. 5251 - 240

The Seiko 5251-240 represents an important milestone in Seiko's 1969 lineup. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b52ae69f779f]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

13.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

140m

Dial Color

Black

Jewels

19j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1969

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