Seiko Cal. 3863 - 903

The Seiko 3863-903 represents an important milestone in Seiko's 1984 lineup. With its 18mm lug width and 14.3mm profile, it sits comfortably on most wrists. [seikata-wm-91eef68cccb9]

Also known as: Turtle, Crown

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

44mm

Case Thickness

14.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1984

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