Seiko Cal. 4439 - 940

The 4439-940 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Sapphire crystal and offers 130m of water resistance. [seikata-wm-d0122378d720]

Also known as: Sumo, Silverwave

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

43mm

Case Thickness

11.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

130m

Dial Color

Burgundy

Jewels

26j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1966

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