Seiko Cal. 3887 - 734

This Spring Drive model from 1970 features a 43mm Titanium case. Powered by the 3887 caliber with 28j jewels beating at 28,800 bph, it delivers a 53 hours power reserve. [seikata-wm-0bd2df984915]

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

43mm

Case Thickness

9.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1970

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