Seiko Cal. 5685 - 637

The Seiko 5685-637 represents an important milestone in Seiko's 1992 lineup. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-a0dfb4ffc816]

Also known as: Rally, Sportsmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Green

Jewels

31j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1992

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