Seiko Cal. 3887 - 328

The 3887-328 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3887 caliber with 21j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-4d5a6af76cb8]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.2mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Silver

Jewels

21j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1967

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