Seiko Cal. 4581 - 199

Seiko 4581-199

The 4581-199 is a sought-after Kinetic piece from Seiko's golden era. The Inner Rotating bezel and 37mm case give it a distinctive presence on the wrist. [seikata-wm-1aae00d70544]

Also known as: Monster, Sportsmatic

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
8.2mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Blue Sunburst
Jewels
21j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1969

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