Seiko Cal. 4539 - 906

The 4539-906 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4539 caliber with 17j jewels beating at 36,000 bph, it delivers a 59 hours power reserve. [seikata-wm-5e9e2dc7d1a6]

Also known as: Sumo, Flighty

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

39mm

Case Thickness

15.8mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

200m

Dial Color

Green

Jewels

17j

Frequency

36,000 bph

Power Reserve

59 hours

Year

1990

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