Seiko Cal. 3887 - 198

This Spring Drive model from 1966 features a 46mm Gold-Plated case. Powered by the 3887 caliber with 34j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-6720a195f06e]

Also known as: UFO, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

13.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

150m

Dial Color

Burgundy

Jewels

34j

Frequency

21,600 bph

Power Reserve

36 hours

Year

1966

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