Seiko Cal. 4436 - 139

The 4436-139 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 11.5mm profile, it sits comfortably on most wrists. [seikata-wm-c72b200d656c]

Also known as: Baby Tuna, Emperor

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

34mm

Case Thickness

11.5mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

25j

Frequency

28,800 bph

Power Reserve

48 hours

Year

1975

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