Seiko Cal. 7131 - 636

The Seiko 7131-636 represents an important milestone in Seiko's 1971 lineup. It features a Champagne dial protected by a Sapphire crystal and offers 80m of water resistance. [seikata-wm-75e7b7450fd5]

Also known as: Panda, Navigator

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

80m

Dial Color

Champagne

Jewels

22j

Frequency

36,000 bph

Power Reserve

58 hours

Year

1971

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