Seiko Cal. 4581 - 831

Seiko 4581-831

The 4581-831 is a sought-after Hand-Winding piece from Seiko's golden era. The Inner Rotating bezel and 45mm case give it a distinctive presence on the wrist. [seikata-wm-c1f1944fcb2b]

Also known as: Samurai, Sea Horse

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
45mm
Case Thickness
15.0mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
200m
Dial Color
Silver
Jewels
36j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1978

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