Seiko Cal. 4477 - 747

The 4477-747 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Hardlex crystal and offers 120m of water resistance. [seikata-wm-04d1cdd48a9a]

Also known as: Monster, Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

White

Jewels

26j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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