Seiko Cal. 5657 - 799

This Quartz model from 1983 features a 37mm Two-Tone case. Powered by the 5657 caliber with 27j jewels beating at 21,600 bph, it delivers a 41 hours power reserve. [seikata-wm-a19be98e23db]

Also known as: Sportsmatic, Bellmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

37mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Black

Jewels

27j

Frequency

21,600 bph

Power Reserve

41 hours

Year

1983

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