Seiko Cal. 5677 - 803

The 5677-803 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5677 caliber with 30j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-eadd31fb98db]

Also known as: Helmet

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

8.1mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

200m

Dial Color

Blue Sunburst

Jewels

30j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1983

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