Seiko Cal. 4490 - 356

Released in 1989, the Cal. 4490 with design code 356 was part of Seiko's domestic market collection. With its 21mm lug width and 11.8mm profile, it sits comfortably on most wrists. [seikata-wm-15da2ad782ec]

Also known as: Sumo, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

40mm

Case Thickness

11.8mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

30j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1989

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