Seiko Cal. 4498 - 728

The Seiko 4498-728 represents an important milestone in Seiko's 1967 lineup. Powered by the 4498 caliber with 20j jewels beating at 36,000 bph, it delivers a 49 hours power reserve. [seikata-wm-23baa29f5fed]

Also known as: World Timer, Flighty

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Silver

Jewels

20j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1967

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