Seiko Cal. 3887 - 249

The Seiko 3887-249 represents an important milestone in Seiko's 1970 lineup. With its 18mm lug width and 9.8mm profile, it sits comfortably on most wrists. [seikata-wm-ee9489f18a7e]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

27j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1970

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