Seiko Cal. 3887 - 147

This Hand-Winding model from 1991 features a 41mm Titanium case. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-4072ab9ca67f]

Also known as: Navigator, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

33j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1991

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