Seiko Cal. 4445 - 939

The 4445-939 is a sought-after Quartz piece from Seiko's golden era. Powered by the 4445 caliber with 27j jewels beating at 36,000 bph, it delivers a 64 hours power reserve. [seikata-wm-6df7941ccfdd]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

35mm

Case Thickness

14.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

Silver

Jewels

27j

Frequency

36,000 bph

Power Reserve

64 hours

Year

1976

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