Seiko Cal. 5686 - 428

This Quartz model from 1976 features a 39mm Stainless Steel case. Powered by the 5686 caliber with 28j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-0aa539f242a9]

Also known as: Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1976

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