Seiko Cal. 5657 - 720

This Kinetic model from 1991 features a 36mm Two-Tone case. With its 19mm lug width and 15.6mm profile, it sits comfortably on most wrists. [seikata-wm-b5716ca0fabf]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

15.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

24j

Frequency

21,600 bph

Power Reserve

58 hours

Year

1991

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