Seiko Cal. 7131 - 633

The 7131-633 is a sought-after Solar piece from Seiko's golden era. The Rotating bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-b0708ae5ed31]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

90m

Dial Color

Burgundy

Jewels

26j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1983

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