Seiko Cal. 4498 - 511

The Seiko 4498-511 represents an important milestone in Seiko's 1990 lineup. Powered by the 4498 caliber with 33j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-6103cc43b1d7]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

44mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

150m

Dial Color

Green

Jewels

33j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1990

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