Seiko Cal. 3861 - 746

This Automatic model from 1966 features a 40mm Titanium case. With its 21mm lug width and 10.6mm profile, it sits comfortably on most wrists. [seikata-wm-d40632d074a1]

Also known as: UFO, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

40mm

Case Thickness

10.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Blue Sunburst

Jewels

36j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1966

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