Seiko Cal. 3878 - 340

This Automatic model from 1967 features a 45mm Titanium case. With its 21mm lug width and 8.5mm profile, it sits comfortably on most wrists. [seikata-wm-e05a03854017]

Also known as: UFO, Sea Horse

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

45mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1967

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