Seiko Cal. 3889 - 254

This Hand-Winding model from 1965 features a 45mm Titanium case. Powered by the 3889 caliber with 21j jewels beating at 28,800 bph, it delivers a 65 hours power reserve. [seikata-wm-63acf27910ef]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

15.0mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

100m

Dial Color

Black

Jewels

21j

Frequency

28,800 bph

Power Reserve

65 hours

Year

1965

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