Seiko Cal. 4431 - 506

The 4431-506 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4431 caliber with 25j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-c5312ea2f352]

Also known as: Sea Horse

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

45mm

Case Thickness

9.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Cream

Jewels

25j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1984

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