Seiko Cal. 4436 - 581

Seiko 4436-581

The 4436-581 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Black dial protected by a Sapphire crystal and offers 150m of water resistance. [seikata-wm-63f49c44f904]

Also known as: Samurai, UFO

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
44mm
Case Thickness
12.0mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Black
Jewels
33j
Frequency
36,000 bph
Power Reserve
53 hours
Year
1985

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seikata-wm-63f49c44f904