Seiko Cal. 5677 - 587

The Seiko 5677-587 represents an important milestone in Seiko's 1984 lineup. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-3522d4e642f3]

Also known as: Helmet

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Black

Jewels

22j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1984

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