Seiko Cal. 4436 - 831

Seiko 4436-831

The 4436-831 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 14.7mm profile, it sits comfortably on most wrists. [seikata-wm-45becc5b58e9]

Also known as: Bullhead, Goldfeather

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
34mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
130m
Dial Color
Black
Jewels
33j
Frequency
21,600 bph
Power Reserve
63 hours
Year
1971

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