Seiko Cal. 3898 - 438

The Seiko 3898-438 represents an important milestone in Seiko's 1990 lineup. Powered by the 3898 caliber with 30j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-dbc3c7354ec4]

Also known as: Sportsmatic

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

36mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Black

Jewels

30j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1990

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