Seiko Cal. 4458 - 347

The Seiko 4458-347 represents an important milestone in Seiko's 1978 lineup. Powered by the 4458 caliber with 26j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-2bb61e929518]

Also known as: Helmet, Sportsmatic

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

35mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Navy

Jewels

26j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1978

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