Seiko Cal. 4457 - 347

The Seiko 4457-347 represents an important milestone in Seiko's 1999 lineup. Powered by the 4457 caliber with 27j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-66f337088b03]

Also known as: Tuna, Helmet

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

39mm

Case Thickness

11.1mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

27j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1999

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