Seiko Cal. 4457 - 830

The Seiko 4457-830 represents an important milestone in Seiko's 1997 lineup. Powered by the 4457 caliber with 20j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-6889ace7552f]

Also known as: Baby Tuna, Flighty

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

10.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

White

Jewels

20j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1997

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