Seiko Cal. 5661 - 781

This Quartz model from 1988 features a 38mm Two-Tone case. Powered by the 5661 caliber with 17j jewels beating at 21,600 bph, it delivers a 64 hours power reserve. [seikata-wm-0db22c632f4d]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

38mm

Case Thickness

9.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1988

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