Seiko Cal. 4423 - 557

Seiko 4423-557

The Seiko 4423-557 represents an important milestone in Seiko's 1997 lineup. Powered by the 4423 caliber with 28j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-1e0eb4507011]

Also known as: Bullhead, Golden Tuna

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
36mm
Case Thickness
13.6mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Rotating
Water Resistance
110m
Dial Color
Blue Sunburst
Jewels
28j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1997

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