Seiko Cal. 3893 - 940

This Spring Drive model from 1985 features a 39mm Titanium case. With its 21mm lug width and 13.0mm profile, it sits comfortably on most wrists. [seikata-wm-9488f446aaff]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

13.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

34j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1985

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