Seiko Cal. 7131 - 129

The Seiko 7131-129 represents an important milestone in Seiko's 1978 lineup. It features a Green dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-c093512e7a1a]

Also known as: Sumo, UFO

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1978

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