Seiko Cal. 7131 - 182

The Seiko 7131-182 represents an important milestone in Seiko's 1976 lineup. It features a Green dial protected by a Mineral crystal and offers 160m of water resistance. [seikata-wm-3148419468d0]

Also known as: Sea Horse, Arnie

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

37mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Green

Jewels

18j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1976

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