Seiko Cal. 4436 - 257

The 4436-257 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-ba78923f885b]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

35mm

Case Thickness

14.4mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

White

Jewels

18j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1984

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