Seiko Cal. 7131 - 531

The Seiko 7131-531 represents an important milestone in Seiko's 1996 lineup. It features a Green dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-7de650dc7aa8]

Also known as: Monster

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

41mm

Case Thickness

8.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

40m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1996

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