Seiko Cal. 3861 - 730

This Spring Drive model from 1977 features a 45mm Titanium case. With its 21mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-8e57407f9867]

Also known as: Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

45mm

Case Thickness

10.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

27j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1977

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