Seiko Cal. 3863 - 271

The Seiko 3863-271 represents an important milestone in Seiko's 1995 lineup. With its 21mm lug width and 12.2mm profile, it sits comfortably on most wrists. [seikata-wm-fa75772675da]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

12.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1995

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