Seiko Cal. 4420 - 737

The Seiko 4420-737 represents an important milestone in Seiko's 1979 lineup. Powered by the 4420 caliber with 27j jewels beating at 36,000 bph, it delivers a 56 hours power reserve. [seikata-wm-05b370888b49]

Also known as: Turtle, UFO

Specifications

Movement

Kinetic

Case Material

Titanium

Case Width

41mm

Case Thickness

12.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Green

Jewels

27j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1979

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