Seiko Cal. 7131 - 999

The Seiko 7131-999 represents an important milestone in Seiko's 1969 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-2abe567a752e]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

31j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1969

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