Seiko Cal. 3887 - 706

The Seiko 3887-706 represents an important milestone in Seiko's 1985 lineup. Powered by the 3887 caliber with 21j jewels beating at 21,600 bph, it delivers a 42 hours power reserve. [seikata-wm-5dfc3599fd61]

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

38mm

Case Thickness

10.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

160m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

42 hours

Year

1985

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