Seiko Cal. 6683 - 581

Released in 1990, the Cal. 6683 with design code 581 was part of Seiko's domestic market collection. With its 18mm lug width and 8.6mm profile, it sits comfortably on most wrists. [seikata-wm-babce987fa4f]

Also known as: Monster, Helmet

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

36mm

Case Thickness

8.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

90m

Dial Color

Silver

Jewels

26j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1990

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