Seiko Cal. 4450 - 939

The Seiko 4450-939 represents an important milestone in Seiko's 1981 lineup. Powered by the 4450 caliber with 21j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-e0e83a96ffbd]

Also known as: Bullhead

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

14.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Cream

Jewels

21j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1981

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