Seiko Cal. 4457 - 347

Seiko 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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