Seiko Cal. 4445 - 961

The 4445-961 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 4445 caliber with 20j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-d0e23bbc7590]

Also known as: Sportsmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.6mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

130m

Dial Color

Blue Sunburst

Jewels

20j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1987

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