Seiko Cal. 7137 - 231

The Seiko 7137-231 represents an important milestone in Seiko's 1967 lineup. The Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-fa528bb88cb4]

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1967

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