Seiko Cal. 5661 - 398

The Seiko 5661-398 represents an important milestone in Seiko's 1990 lineup. It features a Green dial protected by a Hardlex crystal and offers 30m of water resistance. [seikata-wm-32753e07ac50]

Also known as: Pogue, Helmet

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

36mm

Case Thickness

12.4mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Green

Jewels

17j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1990

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