Seiko Cal. 5687 - 790

The Seiko 5687-790 represents an important milestone in Seiko's 1989 lineup. The Fixed bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-ce865228abc2]

Also known as: Monster, Sportsmatic

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.7mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

110m

Dial Color

Silver

Jewels

36j

Frequency

28,800 bph

Power Reserve

43 hours

Year

1989

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