Seiko Cal. 3887 - 846

The Seiko 3887-846 represents an important milestone in Seiko's 1991 lineup. Powered by the 3887 caliber with 21j jewels beating at 21,600 bph, it delivers a 54 hours power reserve. [seikata-wm-1e1c703ea8a6]

Also known as: Navigator, Crown

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Black

Jewels

21j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1991

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