Seiko Cal. 3863 - 150

The Seiko 3863-150 represents an important milestone in Seiko's 1972 lineup. With its 20mm lug width and 14.9mm profile, it sits comfortably on most wrists. [seikata-wm-353a2c889435]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

130m

Dial Color

Navy

Jewels

32j

Frequency

36,000 bph

Power Reserve

42 hours

Year

1972

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