Seiko Cal. 4558 - 631

This Spring Drive model from 1996 features a 40mm Two-Tone case. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-2f9d441d4383]

Also known as: Sumo, Golden Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

40mm

Case Thickness

11.6mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

160m

Dial Color

Burgundy

Jewels

24j

Frequency

28,800 bph

Power Reserve

38 hours

Year

1996

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