Seiko Cal. 3860 - 391

This Hand-Winding model from 1990 features a 40mm Titanium case. Powered by the 3860 caliber with 26j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-f01f48486530]

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1990

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