Seiko Cal. 4458 - 247

The Seiko 4458-247 represents an important milestone in Seiko's 1987 lineup. Powered by the 4458 caliber with 27j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-58f6b46df74e]

Also known as: Sumo, World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

9.5mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

38 hours

Year

1987

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