Seiko Cal. 6363 - 813

The Seiko 6363-813 represents an important milestone in Seiko's 1991 lineup. With its 20mm lug width and 11.2mm profile, it sits comfortably on most wrists. [seikata-wm-40841728eafd]

Also known as: Bullhead, Helmet

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

11.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

100m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

72 hours

Year

1991

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