Seiko Cal. 7131 - 237

The 7131-237 is a sought-after Spring Drive piece from Seiko's golden era. The Inner Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-1f8fa17884ce]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

12.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

60 hours

Year

1998

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