Seiko Cal. 4457 - 830

Seiko 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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