Seiko Cal. 4450 - 707

The Seiko 4450-707 represents an important milestone in Seiko's 1982 lineup. Powered by the 4450 caliber with 21j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-9cc59c1112f3]

Also known as: Sumo

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

38mm

Case Thickness

10.9mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Champagne

Jewels

21j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1982

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