Seiko Cal. 3840 - 948

This Spring Drive model from 1968 features a 39mm Titanium case. With its 19mm lug width and 9.2mm profile, it sits comfortably on most wrists. [seikata-wm-d55600c80b4c]

Also known as: Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

9.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

45 hours

Year

1968

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