Seiko Cal. 3887 - 304

The Seiko 3887-304 represents an important milestone in Seiko's 1992 lineup. Powered by the 3887 caliber with 26j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-06ab636dc4a1]

Also known as: Bullhead

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

8.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Navy

Jewels

26j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1992

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