Seiko Cal. 3881 - 250

The 3881-250 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 3881 caliber with 31j jewels beating at 28,800 bph, it delivers a 69 hours power reserve. [seikata-wm-5d26701ec610]

Also known as: Emperor

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

110m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1978

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