Seiko Cal. 3816 - 563

The Seiko 3816-563 represents an important milestone in Seiko's 1988 lineup. With its 20mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-967cc32af6e3]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

41mm

Case Thickness

14.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

28j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1988

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