Seiko Cal. 4564 - 184

The Seiko 4564-184 represents an important milestone in Seiko's 1999 lineup. The Bidirectional bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-36324a65552c]

Also known as: Sumo, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

38mm

Case Thickness

13.5mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

72 hours

Year

1999

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