Seiko Cal. 4436 - 569

The 4436-569 is a sought-after Spring Drive piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 50m of water resistance. [seikata-wm-51dc0568a0d3]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

44mm

Case Thickness

8.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

69 hours

Year

1965

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